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 A054045 #12 Jun 26 2016 07:58:44 %S A054045 1,2,4,8,16,32,64,128,255,256,512,1024,2048,3855,4096,8192,13107, %T A054045 16384,21845,27306,32768,38506,65536,71576,92115,101470,131072,138406, %U A054045 172589,240014,262144,272069,380556,524288,536169,679601 %N A054045 Grundy function for turn-at-most-8-coins game. %D A054045 E. R. Berlekamp, J. H. Conway and R. K. Guy, Winning Ways, Academic Press, NY, 2 vols., 1982, see p. 433. %H A054045 Jingzhe Tang, <a href="/A054045/b054045.txt">Table of n, a(n) for n = 1..64</a> %Y A054045 Cf. A000069, A033623, A054016, A054047, etc. %K A054045 nonn,nice %O A054045 1,2 %A A054045 _N. J. A. Sloane_, Apr 29 2000