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 A131236 #5 Mar 20 2018 08:16:09 %S A131236 1,2,5,14,48,190,873,4504,25989,164686,1141079,8550794,69034238, %T A131236 596165874,5489044279,53611773888,553937164945,6032197300602, %U A131236 69070616521369,829210595494742,10416695090023412,136614200179164806,1867352453003735541 %N A131236 Row sums of A131235. %p A131236 A131236 := proc(d) %p A131236 add( A131235(d-m,m),m=0..d) ; %p A131236 end proc: %p A131236 seq(A131236(n),n=0..20) ; # _R. J. Mathar_, Mar 20 2018 %K A131236 easy,nonn %O A131236 0,2 %A A131236 _Vladeta Jovovic_, Jun 20 2007 %E A131236 Extended by _R. J. Mathar_, Mar 20 2018