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 A207038 #17 Apr 11 2012 13:06:11 %S A207038 0,1,3,5,8,11,15,18,22,26,31,35,40,45,51,55,60,65,71,77,83,90,95,101, %T A207038 107,114,120,127,134,142,147,153,159,166,173,180,188,195,203,211,219, %U A207038 228,234,241,248,256,263,271,279,288,296,304,313,322,331,341 %N A207038 Partial sums of A207034. %H A207038 Alois P. Heinz, <a href="/A207038/b207038.txt">Table of n, a(n) for n = 1..1000</a> %e A207038 Written as a triangle: %e A207038 0; %e A207038 1; %e A207038 3; %e A207038 5,8; %e A207038 11,15; %e A207038 18,22,26,31; %e A207038 35,40,45,51; %e A207038 55,60,65,71,77,83,90; %e A207038 95,101,107,114,120,127,134,142; %e A207038 147,153,159,166,173,180,188,195,203,211,219,228; %e A207038 234,241,248,256,263,271,279,288,296,304,313,322,331,341; %Y A207038 Row n has length A187219(n). Right border gives A196087. %Y A207038 Cf. A006128, A135010, A138121, A194548, A207035. %K A207038 nonn,tabf %O A207038 1,3 %A A207038 _Omar E. Pol_, Feb 21 2012