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 A295446 #7 Nov 28 2017 11:50:23 %S A295446 1,30,2090,165648,13873002,1198158780,105534616880,9423350114880, %T A295446 849915927124330,77248168052615490,7063878565972568340, %U A295446 649143744147709730400,59897782807583055382320,5545885349166413944400400,514993443497655350848314048,47943397954241622806694753648 %N A295446 a(n) = (10*n)!*(6*n)!/((9*n)!*(5*n)!*(2*n)!). %F A295446 G.f.: hypergeom([1/10, 1/6, 3/10, 1/2, 7/10, 5/6, 9/10], [1/9, 2/9, 4/9, 5/9, 7/9, 8/9], 51200000/531441*x). %Y A295446 Cf. A295431. %K A295446 nonn %O A295446 0,2 %A A295446 _Gheorghe Coserea_, Nov 27 2017