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 A295454 #6 Nov 28 2017 11:49:59 %S A295454 1,380190,402651263238,481367742667183020,606773455031055915223110, %T A295454 788038286971309455244327103940,1043296916338880227942329375359295900, %U A295454 1399861754063759689631089578666777998208024,1896931228304326042693101941956800377403844620870 %N A295454 a(n) = (30*n)!*(9*n)!*(5*n)!/((18*n)!*(15*n)!*(10*n)!*n!). %F A295454 G.f.: hypergeom([1/30, 7/30, 11/30, 13/30, 17/30, 19/30, 23/30, 29/30], [1/18, 5/18, 7/18, 1/2, 11/18, 13/18, 17/18], 39062500/27*x). %Y A295454 Cf. A295431. %K A295454 nonn %O A295454 0,2 %A A295454 _Gheorghe Coserea_, Nov 27 2017