This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A320440 #25 Feb 10 2019 17:26:32
%S A320440 0,2,4,8,11,20,22,32,31,52,56,80,79,100,94,128,137,176,172,208,193,
%T A320440 244,254,320,266,340,283,400,407,332,466,512,499,580,569,680,667,724,
%U A320440 745,848,821,872,904,976,1021,1060,1082,1280,1093,1312,1330,1360,1379,1472,1479,1584,1543
%N A320440 Row sums of A225043.
%H A320440 Nathan M Epstein, <a href="https://gist.github.com/Aeium/d776d6a0dedca23f4cb281548645df30">Python program</a>
%F A320440 a(A000040(n)) = A072205(n) for n > 0.
%t A320440 a[n_]:=Sum[Mod[Binomial[n, k],n+1], {k,0, n}]; Array[a, 100, 0] (* _Stefano Spezia_, Jan 09 2019 *)
%o A320440 (PARI) a(n) = sum(k=0, n, binomial(n,k) % (n+1)); \\ _Michel Marcus_, Jan 09 2019
%Y A320440 Cf. A000040, A062173, A072205, A225043.
%K A320440 nonn
%O A320440 0,2
%A A320440 _Nathan M Epstein_, Jan 09 2019