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 A129396 #7 May 20 2014 14:52:32 %S A129396 1,2,5,2,3,-10,-15,-10,3,4,16,9,3,9,16,4,5,22,13,-25,-47,-25,13,22,5, %T A129396 6,-140,-151,-33,105,163,105,-33,-151,-140,6,7,378,365,127,-87,-181, %U A129396 -199,-181,-87,127,365,378,7,8,-504,-519,-393,-239,27,353,507,353,27,-239,-393,-519,-504,8,9,-194,-211,487,1217,1123,145 %N A129396 Triangle read by rows: T(r,c)=T(r,c-1)+T(r,c+1)+T(r-1,c-1). %C A129396 Like A129392, except edge elements=1,2,3,4,5... %H A129396 R. J. Mathar, <a href="/A129392/a129392.pdf">Comments on A129392, A129394 and A129396</a> %Y A129396 Cf. A129392, A129397. %K A129396 sign,tabf %O A129396 0,2 %A A129396 _Jonas Wallgren_, Apr 13 2007 %E A129396 More terms from _R. J. Mathar_, Jan 17 2008