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 A003054 #14 Jul 21 2015 12:48:14 %S A003054 1,1,2,5,14,39,120,358,1176,3527,11622,36627,121622,389560,1301140, %T A003054 4215748 %N A003054 Erroneous version of A001011 ("folding a strip of stamps"). %D A003054 James Gleick, Faster, Vintage Books, NY, 2000 (see pp. 259-261). %D A003054 J. E. Koehler, Folding a strip of stamps, J. Combin. Theory, 5 (1968), 135-152. %H A003054 J. E. Koehler, <a href="/A001011/a001011_4.pdf">Folding a strip of stamps</a>, J. Combin. Theory, 5 (1968), 135-152. [Annotated, corrected, scanned copy] %K A003054 dead %O A003054 1,3