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 A295448 #6 Nov 28 2017 11:50:18 %S A295448 1,58344,12021607800,2822244125414280,700261879438261335160, %T A295448 179189518952510712859732344,46764098183514722386761235104408, %U A295448 12372233944479031609487359517835891000,3306338458421450496220314582388757069245560,890410398621683112497449813467376431287399918400 %N A295448 a(n) = (18*n)!*(3*n)!*(2*n)!/((9*n)!*(7*n)!*(6*n)!*n!). %F A295448 G.f.: hypergeom([1/18, 5/18, 7/18, 1/2, 11/18, 13/18, 17/18], [1/7, 2/7, 3/7, 4/7, 5/7, 6/7], 235092492288/823543*x). %Y A295448 Cf. A295431. %K A295448 nonn %O A295448 0,2 %A A295448 _Gheorghe Coserea_, Nov 27 2017