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 A133716 #7 Sep 13 2015 21:06:50 %S A133716 1,15,140,995,5901,30569,142375,607700,2410081,8972559,31608089, %T A133716 106027825,340416406,1050541069,3127340719,9007681389,25168555576, %U A133716 68374424019,180958790169,467385754264,1179927541924,2915558734984,7060185950979 %N A133716 Row l=6 of array in A133713. %p A133716 A133716 := proc(c) %p A133716 A133713(6,c) ; %p A133716 end proc: %p A133716 seq(A133716(c),c=0..30) ; # _R. J. Mathar_, Nov 23 2011 %K A133716 nonn %O A133716 0,2 %A A133716 _N. J. A. Sloane_, Dec 30 2007