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 A025186 #9 Jul 28 2016 15:35:58 %S A025186 1,3,29,286,2955,31350,338514,3701295,40849661,454114540,5077463898, %T A025186 57038882004,643269405230,7278603015180,82590333059025, %U A025186 939444489263403,10708773485661387,122299562702918348,1399055759185079316 %N A025186 T(4n,n), where T is the array defined in A025177. %p A025186 A025186 := proc(n) %p A025186 A025177(4*n,n) ; %p A025186 end proc: # _R. J. Mathar_, Jul 28 2016 %K A025186 nonn %O A025186 0,2 %A A025186 _Clark Kimberling_