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A166314 Number of 1's in binary expansion of A000124(n). 1
1, 1, 1, 3, 3, 1, 3, 4, 3, 4, 3, 3, 5, 4, 4, 5, 3, 4, 4, 7, 5, 4, 7, 4, 5, 4, 3, 7, 6, 5, 5, 6, 3, 4, 4, 7, 6, 3, 6, 5, 6, 7, 4, 7, 9, 3, 5, 5, 5, 5, 7, 7, 6, 5, 7, 4, 7, 7, 5, 8, 7, 6, 6, 7, 3, 4, 4, 7, 6, 5, 7, 9, 5, 6, 6, 6, 9, 8, 4, 6, 6, 8, 6, 9, 9, 5, 8, 9, 8, 8, 1, 6, 7, 4, 6, 6, 5, 5, 7, 8, 9, 3, 5, 8, 7 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Table of n, a(n) for n=0..104.

FORMULA

a(n) = A000120(A000124(n)). - Michel Marcus, May 05 2019

MAPLE

read("transforms") ;

A166314 := proc(n) wt(A000124(n)) ; end:

A000124 := proc(n) n*(n+1)/2+1 ; end: seq(A166314(n), n=0..80) ; # R. J. Mathar, Oct 14 2009

MATHEMATICA

Clear[lst, n, s, f, i] f[n_]:=Plus@@IntegerDigits[n, 2]; i=1; s=1; lst={i}; Do[s+=n+i; If[s>=0, AppendTo[lst, f[s]]], {n, 0, 6!, 1}]; lst

CROSSREFS

Cf. A000120, A000124.

Sequence in context: A161200 A214747 A110766 * A109630 A201439 A202511

Adjacent sequences:  A166311 A166312 A166313 * A166315 A166316 A166317

KEYWORD

nonn,base,easy

AUTHOR

Vladimir Joseph Stephan Orlovsky, Oct 11 2009

EXTENSIONS

Definition shortened, offset set to zero by R. J. Mathar, Oct 14 2009

STATUS

approved

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Last modified May 24 04:25 EDT 2019. Contains 323528 sequences. (Running on oeis4.)