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 A060558 #14 Jul 03 2018 02:33:15 %S A060558 5,55,316,1284,4170,11550,28380,63492,131703,256685,474760,839800, %T A060558 1429428,2352732,3759720,5852760,8900265,13252899,19362596,27804700, %U A060558 39303550,54761850,75294180,102265020 %N A060558 Fifth column (m=4) of triangle A060556. %H A060558 Harry J. Smith, <a href="/A060558/b060558.txt">Table of n, a(n) for n = 0..500</a> %F A060558 a(n) = (2*n^2 + 18*n + 35)*binomial(n+6, 6)/7. %F A060558 G.f.: (5 + 10*x + x^2)/(1-x)^9. %o A060558 (PARI) a(n)={(2*n^2 + 18*n + 35)*binomial(n + 6, 6)/7} \\ _Harry J. Smith_, Jul 07 2009 %Y A060558 Cf. A000217, A004320, A040977. %K A060558 nonn,easy %O A060558 0,1 %A A060558 _Wolfdieter Lang_, Apr 06 2001