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Zebasiz
Bronze Bit -
Friendly Griffon - For helping others attend the fifth anniversary party
Friendship, Art, and Magic (2017) - Celebrated Derpibooru's five year anniversary with friends.
A Perfectly Normal Pony - <Zeb> That's why yer female partner can use a trapon
Magnificent Metadata Maniac - #1 Assistant
Artist -

@Eeveeinheat  
They’re working with film-reel levels of technology. There was no copy-paste functions aside from ACTUALLY cutting out some wings from somewhere else and pasting them in~
Background Pony #3A9D
If the number of wings was “at least 800 wingpower”, the smallest triangle to match that criterion would be 820, which is trinum(40) or 800 < (40)(41)/2.
Eeveeinheat
Equality - In our state, we do not stand out.
Magical Inkwell - Wrote MLP fanfiction consisting of at least around 1.5k words, and has a verified link to the platform of their choice

@WaffleBandito  
I was doing it because I couldn’t stand that the person who made this post in the first place got 585, which is wrong any way you do it, not because I was trying to find logic or science in the show. … And I just look down in the comments and someone beat me too it, OFC.
Eeveeinheat
Equality - In our state, we do not stand out.
Magical Inkwell - Wrote MLP fanfiction consisting of at least around 1.5k words, and has a verified link to the platform of their choice

@Eeveeinheat  
No!!!! I meant for it to be n+1! No!!! Anyone here who has admin power, could you maybe fix that for me please? It’s the two parts at the bottom where I messed up and said ((n(n-1))/2)-8 and ((34(34-1))/2)-8 instead of  
((n(n+1))/2)-8 and ((34(34+1))/2)-8
Eeveeinheat
Equality - In our state, we do not stand out.
Magical Inkwell - Wrote MLP fanfiction consisting of at least around 1.5k words, and has a verified link to the platform of their choice

I would use (n(n+1))/2 to solve this, and this would work if the rows each have one less than the previous, but since the bottom row has 34, yet there are 33 rows in all, that means someone fudged up when making this in the first place. Let’s see where the mess up is-
 
Row-Number in row  
1 - 34  
2 - 33  
3 - 32  
4 - 31  
5 - 30  
6 - 29  
7 - 28  
8 - 27  
9 - 26  
10 - 25  
11 - 24  
12 - 23  
13 - 22  
14 - 21  
15 - 20  
16 - 19  
17 - 18  
18 - 17  
19 - 16  
20 - 15  
21 - 14  
22 - 13  
23 - 12  
24 - 11  
25 - 10  
26 - 9  
Extra row missing number 8 <  
27 - 7  
28 - 6  
29 - 5  
30 - 4  
31 - 3  
32 - 2  
33 - 1
 
In conclusion we find the real row 27 to be skipped entirely. Now the math problem is simple.  
((n(n-1))/2)-8  
((34(34-1))/2)-8  
((34*35)/2)-8  
(1190/2)-8  
595-8  
587
 
The answer is 587 wings. Sigh… I spent way too much time with this…
UrbanMysticDee
Birthday Cake - Celebrated MLP's 7th birthday
Artist -

Beard of Beards
@mathprofbrony  
I was originally SenorDee on AOL because SenorDiablo was taken. When I became an urban mystic I changed the Senor part to Urban Mystic and kept Dee because I’d been using that name for so long.
Background Pony #EA88
@filflat  
More to the point, when it comes to presentations like this, the numbering system on the slides/filmstrip/whatever goes roughly: 1, 2, 3, 4, 5, several, a lot, a whole lot, more than you can count without making a mistake somewhere. The fact that there’s 587 wings in this image doesn’t mean there’s 587 pegasi or 587 wings or 587 wingpower represented; it means there’s a whole heck of a lot of pegasi/wings/wingpower being represented. (Now, if there were a legend on this image saying “1 wing = 1 wingpower”, OP might have a semblance of a case.)
 
And remember, even “can hardly fly” Fluttershy managed at least 2.5 wingpower, so it’s not like this image is claiming this is exactly the number of pegasi or wings you’ll need to reach 800 wingpower.
 
(As an aside, was anyone else hoping Derpy would have her wingpower measured as 9.6?)
mathprofbrony
Nightmare in the Moon - Had their OC in the 2024 Derpibooru Collab.
Solar Supporter - Fought against the New Lunar Republic rebellion on the side of the Solar Deity (April Fools 2023).
Roseluck - Had their OC in the 2023 Derpibooru Collab.
Elements of Harmony - Had an OC in the 2022 Community Collab
Twinkling Balloon - Took part in the 2021 community collab.
Friendship, Art, and Magic (2020) - Took part in the 2020 Community Collab
Wallet After Summer Sale -
Friendship, Art, and Magic (2018) - Celebrated Derpibooru's six year anniversary with friends.
Birthday Cake - Celebrated MLP's 7th birthday
The End wasn't The End - Found a new home after the great exodus of 2012

There only place where there is a wing more than being 1 plus the row below is going from 7 to 9. So add 8, and you can get the sum from 1 to the last row, 34.
 
There is a formula for the sum from 1 to n: (n2 + n)/2. These are called the triangular numbers, much as the square numbers n2 are the numbers of things arranged in complete squares.
 
A 34-row triangle thus has (34^2 + 34)/2 = 595 wings. If you are missing 8, then there are 587.