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 A087662 #11 Jul 05 2018 11:22:06
%S A087662 5,29,230,2260,25921,334105,4717653,71677935,1156559775,19624027967,
%T A087662 347486715005,6382806114599,121036793631550,2360217764672530,
%U A087662 47174734548813698,963862614738695410,20085285577742751859,426043585490101967355,9183714902258875988330
%N A087662 Values of a certain hypergeometric function. Not known to be always integer-valued.
%F A087662 a(n) = 5*hypergeom([ -n, n/2+7/2, n/2+4], [5, 3], -4).
%F A087662 Recurrence: (n+4)*(n+5)*(n+6)*(3*n + 2)*a(n) = 5*(n+5)*(3*n + 4)*(6*n^2 + 14*n + 9)*a(n-1) - (n-1)*(9*n^3 + 24*n^2 + 17*n - 20)*a(n-2) + (n-4)*(n-2)*(n-1)*(3*n + 5)*a(n-3). - _Vaclav Kotesovec_, Jul 05 2018
%t A087662 a[n_] := 5*HypergeometricPFQ[{-n, n/2 + 7/2, n/2 + 4}, {5, 3}, -4];
%t A087662 Table[a[n], {n, 0, 16}] (* _Jean-François Alcover_, Feb 19 2018 *)
%Y A087662 Cf. A087659-A087661.
%K A087662 nonn
%O A087662 0,1
%A A087662 _Bill Gosper_, Sep 26 2003
%E A087662 More terms from _Vladeta Jovovic_, Sep 30 2003