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 A198260 #29 Aug 02 2013 11:38:12 %S A198260 1,1,2,2,1,2,2,2,2,4,3,2,3,4,2,1,2,2,2,2,4,3,2,4,4,2,2,2,4,4,4,3,2,4, %T A198260 4,4,4,2,4,3,2,4,4,4,4,4,8,7,3,5,6,2,3,4,4,4,4,6,5,4,7,8,2,3,4,2,1,2, %U A198260 2,2,2,4,3,2,4,4,2,2,2,4,4,4,3,2,4,4,4,4,2,4,3,2,4,4 %N A198260 Runs of 1s in binary strings corresponding to subgroups of nimber addition. %C A198260 Counts the runs of consecutive ones in the binary representation of A190939. All positive integers appear in this sequence. %C A198260 The first A006116(n) entries contain all integers from 1 to 2^(n-1). E.g. the first 67 entries contain all integers from 1 to 8. How often each integer appears is counted by the triangle A227961. %H A198260 Tilman Piesk, <a href="/A198260/b198260.txt">Table of n, a(n) for n = 0..2824</a> %F A198260 a(n) = A069010(A190939(n)). %Y A198260 Cf. A190939 (subgroups of nimber addition interpreted as binary numbers). %Y A198260 Cf. A069010 (runs of 1s). %Y A198260 Cf. A227961 (corresponding triangle). %K A198260 nonn %O A198260 0,3 %A A198260 _Tilman Piesk_, Oct 22 2011 %E A198260 Changed offset to 0 as in A190939 by _Tilman Piesk_, Jan 25 2012 %E A198260 Significant edit by _Tilman Piesk_, Aug 01 2013