On Tue, Sep 08, 2009 at 03:52:46PM +0300, Georgi Guninski wrote: > A120511 a(n) = min{j : A006949(j) = n} > A006949 A well-behaved cousin of the Hofstadter > sequence > > seems to satisfy: > [A] > a(0)=1 > a(1)=1 > a(n)=a(round(n/2))+(n mod 2))+n > correction: a(n)=a(round(n/2)+(n mod 2))+n