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 A077174 #5 Dec 05 2013 19:55:49 %S A077174 2,6,5,10,16,21,28,36,48,55,66,80,91,105,121,137,153,551,190,209,231, %T A077174 254,1271,298,326,3127,1247,47027,432,461,2911,3233,1591,590,222017, %U A077174 2867,171749,139019,5183,808,21182921,206753,288569,4331,5767,35139959 %N A077174 Final terms of rows of triangle in A077172. %Y A077174 Cf. A077172, A077173, A077175, A077176, A100918. %K A077174 nonn %O A077174 1,1 %A A077174 _Amarnath Murthy_, Nov 01 2002 %E A077174 Extended by _Ray Chandler_, Nov 29 2004