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 A174498 #10 Mar 30 2012 19:00:07 %S A174498 1,1,2,2,1,4,2,1,1,1,1,4,1,4,2,2,1,1,2,3 %N A174498 Topswops (2): number of permutations of cards achieving A000376(n). %C A174498 This is for the topswops variation ending in sorted/identity permutation. %D A174498 D. E. Knuth, TAOCP, Section 7.2.1.2, Problems 107-109. %Y A174498 Cf. A000376. %K A174498 nonn %O A174498 1,3 %A A174498 _Moritz Franckenstein_, Nov 28 2010 %E A174498 a(20)=3 by Moritz Franckenstein, Apr 16 2011.