A166312 - OEIS

A166312

Number of 1's in binary expansion of A000326(n).

0, 1, 2, 2, 3, 3, 4, 3, 4, 5, 3, 3, 4, 7, 6, 4, 5, 5, 7, 3, 5, 5, 6, 5, 5, 7, 7, 4, 4, 8, 7, 5, 6, 5, 7, 6, 6, 9, 5, 6, 5, 6, 4, 4, 5, 8, 7, 7, 6, 9, 7, 6, 10, 6, 8, 7, 4, 8, 7, 4, 8, 9, 8, 6, 7, 5, 7, 6, 9, 8, 7, 8, 8, 8, 10, 4, 6, 7, 10, 6, 6, 6, 9, 5, 7, 7, 8, 7, 7, 9, 8, 5, 7, 10, 9, 7, 7, 9, 6, 8, 8, 9, 8

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,3

LINKS

Table of n, a(n) for n=0..102.

FORMULA

a(n) = A000120(A000326(n)). - R. J. Mathar, Oct 14 2009

MAPLE

read("transforms") ;

A000326 := proc(n) n*(3*n-1)/2 ; end:

A166312 := proc(n) wt(A000326(n)) ; end: seq(A166312(n), n=0..80) ; # R. J. Mathar, Oct 14 2009

MATHEMATICA