Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).
%I #7 Mar 31 2012 14:00:56
%S 1,1,4,2,1,2,9,3,2,1,2,4,2,3,16,4,3,2,2,2,1,2,3,6,2,2,2,6,3,4,25,5,4,
%T 3,3,2,2,2,3,3,2,1,2,2,2,3,4,8,3,2,4,2,2,2,3,9,3,3,3,8,4,5,36,6,5,4,4,
%U 3,3,3,3,3,2,2,2,2,2,3,4,4,3,2,2,2,1,2,3,3,2,2,2,3,3,4,5,10,4,3,6,2,2,2,6,3
%N The product of maximal run and minimal run lengths in the binary representation of n.
%F a(n)=A043276(n)*A175597(n).
%Y Cf. A175599.
%K nonn,base
%O 1,3
%A _Juri-Stepan Gerasimov_, Aug 04 2010
%E Corrected by _D. S. McNeil_, Nov 26 2010