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 A209246 #44 Nov 20 2013 13:35:46 %S A209246 1,3,6,7,12,12,18,15,27,20,30,28,36,30,50,31,48,49,54,42,72,50,66,60, %T A209246 77,60,96,56,84,94,90,63,120,80,114,93,108,90,144,90,120,130,126,90, %U A209246 182,110,138,124,151,135,192,108,156,166,180,120,216,140 %N A209246 Row sums of triangle A196020. %C A209246 Alternating sum of row n in the triangle A196020 equals A000203(n). This is the standard row sums of triangle A196020. %Y A209246 Cf. A000203, A196020. %K A209246 nonn %O A209246 1,2 %A A209246 _Omar E. Pol_, Feb 02 2013