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 A058734 #10 Mar 30 2012 17:37:51 %S A058734 0,2,1,12,2,8,3,15,5,11,4,14,7,1,6,240,8,42,9,100,10,32,11,231,13,35, %T A058734 12,102,15,41,14,124,20,38,21,168,22,44,23,107,17,47,16,170,19,37,18, %U A058734 184,28,14,29,192,30,4,31,131,25,7,24,194,27,13,26,214,39,165,38,203 %N A058734 Nim-product n*(n+1). %D A058734 J. H. Conway, On Numbers and Games, Academic Press, p. 52. %H A058734 R. J. Mathar, <a href="/A058734/b058734.txt">Table of n, a(n) for n = 0..1000</a> %H A058734 <a href="/index/Ni#Nimmult">Index entries for sequences related to Nim-multiplication</a> %F A058734 Nim-sum (A003987) of n and A006042(n). %F A058734 a(n) = A051775(n,n+1). %Y A058734 A diagonal of A051775. Cf. A006042. %K A058734 nonn,easy %O A058734 0,2 %A A058734 _N. J. A. Sloane_, Dec 31 2000 %E A058734 More terms from _John W. Layman_, Mar 05 2001