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 A100918 #3 Mar 30 2012 17:29:20 %S A100918 1,1,2,24,64,540,8640,34560,103680,3326400,23224320,96768000, %T A100918 764225280,24385536000,108391219200,1097349120000,29847896064000, %U A100918 1631977611264000,12384682168320000,8034351316992000,36502221127680000 %N A100918 A077175(n) / A077176(n). %Y A100918 Cf. A077172, A077173, A077174, A077175, A077176. %K A100918 nonn %O A100918 1,3 %A A100918 _Ray Chandler_, Nov 29 2004