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A151783 4^{wt(n)-1}. 3
1, 1, 4, 1, 4, 4, 16, 1, 4, 4, 16, 4, 16, 16, 64, 1, 4, 4, 16, 4, 16, 16, 64, 4, 16, 16, 64, 16, 64, 64, 256, 1, 4, 4, 16, 4, 16, 16, 64, 4, 16, 16, 64, 16, 64, 64, 256, 4, 16, 16, 64, 16, 64, 64, 256, 16, 64, 64, 256, 64, 256, 256, 1024, 1, 4, 4, 16, 4, 16, 16, 64, 4, 16, 16, 64, 16, 64 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..77.

EXAMPLE

Contribution from Omar E. Pol, Jul 21 2009: (Start)

If written as a triangle:

1;

1,4;

1,4,4,16;

1,4,4,16,4,16,16,64;

1,4,4,16,4,16,16,64,4,16,16,64,16,64,64,256;

1,4,4,16,4,16,16,64,4,16,16,64,16,64,64,256,4,16,16,64,16,64,64,256,16,64,...

(End)

MAPLE

Cf. A048896, A147610, A151780.

CROSSREFS

Cf. A000302, A102376. [From Omar E. Pol, Jul 21 2009]

A102376 is a very similar sequence.

Sequence in context: A035646 A144034 A204714 * A258853 A275791 A093561

Adjacent sequences:  A151780 A151781 A151782 * A151784 A151785 A151786

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jun 25 2009

STATUS

approved

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Last modified February 21 04:22 EST 2018. Contains 299389 sequences. (Running on oeis4.)