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 A054044 #3 Mar 30 2012 16:48:45 %S A054044 1,2,4,8,16,32,64,127,128,256,512,911,1024,1459,1749,1897,2048,2518, %T A054044 2787,2874,3320,3357,3662,4004,4096,8192,16384,28687,32768,45107, %U A054044 53333,57449,65536,77910,86115,90170,102520,106525,114766,127012 %N A054044 Grundy function for turn-at-most-7-coins game. %D A054044 E. R. Berlekamp, J. H. Conway and R. K. Guy, Winning Ways, Academic Press, NY, 2 vols., 1982, see p. 433. %Y A054044 Cf. A000069, A033623, A054016, A054047, etc. %K A054044 nonn,nice %O A054044 1,2 %A A054044 _N. J. A. Sloane_, Apr 29 2000