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 A295474 #5 Nov 28 2017 22:01:45 %S A295474 1,3230,28539654,285775341740,3020260664350790,32901338385286966980, %T A295474 365436597301046276738460,4114133256443603065995388440, %U A295474 46780615678270404496871840084550,536005188259178667341474315575006676,6178692020351504220300189963052978836404,71573683420303750522221857739718191020815080 %N A295474 a(n) = (20*n)!*(7*n)!*(2*n)!/((14*n)!*(10*n)!*(4*n)!*n!). %F A295474 G.f.: hypergeom([1/20, 3/20, 7/20, 9/20, 11/20, 13/20, 17/20, 19/20], [1/14, 3/14, 5/14, 1/2, 9/14, 11/14, 13/14], 10000000000/823543*x). %Y A295474 Cf. A295431. %K A295474 nonn %O A295474 0,2 %A A295474 _Gheorghe Coserea_, Nov 28 2017