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 A100789 #5 Apr 30 2014 01:30:10 %S A100789 1,22,310,2583,13809,54186,171002,460055,1096313,2375494,4768246, %T A100789 8988607,16078425,27509418,45304554,72180431,111712337,168523670, %U A100789 248501398,359039239,509310241,710570442,976495290,1323550503 %N A100789 First differences of A000543. %F A100789 (1/12)(2n+1)(2n^6+6n^5+11n^4+12n^3+25n^2+20n+12). - _Ralf Stephan_, May 16 2007 %K A100789 nonn %O A100789 0,2 %A A100789 _N. J. A. Sloane_, Jan 04 2005