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 A093646 #4 Oct 12 2012 14:40:20 %S A093646 1,19,145,715,2695,8437,23023,56485,127270,267410,529958,999362, %T A093646 1805570,3142790,5293970,8662214,13810511,21511325,32807775,49088325, %U A093646 72177105,104442195,148924425,209489475,291006300,399555156,542668764,729610420 %N A093646 Higher dimensional figurate numbers based on 12-gonal numbers A051624. %F A093646 a(n)= (10*n+9)*binomial(n+8, 8)/9. G.f.: (1+9*x)/(1-x)^10. %Y A093646 Cf. A093645 ((10, 1) Pascal, column m=9). %K A093646 nonn,easy %O A093646 0,2 %A A093646 _Wolfdieter Lang_, Apr 22 2004