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 A269474 #6 Feb 27 2016 13:29:16 %S A269474 105,8112,396792,15663360,544475232,17388675072,522638463744, %T A269474 15007609257984,415870219556352,11199568168353792,294628320168579072, %U A269474 7600751972236394496,192860109239084236800,4824494454867178291200,119207140785929743368192,2913796518104633469566976 %N A269474 Column 2 of A266240. %H A269474 Vaclav Kotesovec, <a href="/A269474/b269474.txt">Table of n, a(n) for n = 3..750</a> %F A269474 Recurrence: (n-4)*(n-3)*(n-2)*(2100*n^3 - 22577*n^2 + 77702*n - 86760)*a(n) = 48*(n-4)*(37800*n^5 - 463086*n^4 + 2015601*n^3 - 3767956*n^2 + 2822996*n - 645120)*a(n-2) - 20736*(n-2)*(3*n - 10)*(3*n - 8)*(2100*n^3 - 9977*n^2 + 12594*n - 4864)*a(n-4). %F A269474 a(n) ~ 7 * 2^(2*n - 9/2) * 3^(3*n/2 - 3/2) * n^(5/2) / (5*sqrt(Pi)). %Y A269474 Cf. A266240. %K A269474 nonn %O A269474 3,1 %A A269474 _Vaclav Kotesovec_, Feb 27 2016