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 A128324 #3 Mar 30 2012 18:37:03 %S A128324 1,2,8,31,159,955,6677,51308,429868,3847548,36599474,366515450, %T A128324 3848812068,42154442638,480103999452,5666303543327,69139729751267, %U A128324 870092119451903,11272494698299169,150074841511853609 %N A128324 Row sums of triangle A128320. %o A128324 (PARI) %Y A128324 Cf. A128320 (triangle), A128321 (column 0), A128322 (column 1), A128323 (column 2); variant: A115084. %K A128324 nonn %O A128324 0,2 %A A128324 _Paul D. Hanna_, Feb 25 2007