1,2
Table of n, a(n) for n=1..72.
If n = 2^m*(2t+1) then a(n) = (3^(m+1)-2^(m+1))*3^wt(t) where wt() = A000120().
Cf. A169689. Bisections: A048883, A169698.
Sequence in context: A133172 A075453 A073845 * A092525 A101367 A256565
Adjacent sequences: A169694 A169695 A169696 * A169698 A169699 A169700
nonn
N. J. A. Sloane, Apr 15 2010
approved