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A151789 a(1)=1; for n > 1, a(n)=5*4^{wt(n-1)-1}. 5
1, 5, 5, 20, 5, 20, 20, 80, 5, 20, 20, 80, 20, 80, 80, 320, 5, 20, 20, 80, 20, 80, 80, 320, 20, 80, 80, 320, 80, 320, 320, 1280, 5, 20, 20, 80, 20, 80, 80, 320, 20, 80, 80, 320, 80, 320, 320, 1280, 20, 80, 80, 320, 80, 320, 320, 1280, 80, 320, 320, 1280, 320, 1280, 1280, 5120 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
wt(n) is the Hamming weight = binary weight of n (A000120).
LINKS
CROSSREFS
Cf. A000120.
Sequence in context: A274910 A370547 A201803 * A339320 A302176 A094338
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jun 25 2009
STATUS
approved

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Last modified February 28 08:11 EST 2024. Contains 370393 sequences. (Running on oeis4.)