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A151760 G.f.: Theta^4, where Theta = Sum_{k>=0} x^(2^k). 6
0, 0, 0, 0, 1, 4, 6, 8, 13, 12, 10, 16, 18, 16, 20, 24, 13, 12, 18, 16, 22, 24, 28, 24, 18, 16, 28, 24, 20, 24, 24, 0, 13, 12, 18, 16, 30, 24, 28, 24, 22, 24, 36, 24, 28, 24, 24, 0, 18, 16, 28, 24, 28, 24, 24, 0, 20, 24, 24, 0, 24, 0, 0, 0, 13, 12, 18, 16, 30, 24, 28, 24, 30, 24, 36 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,6

COMMENTS

Number of ways to write n as an ordered sum of 4 powers of 2. - Ilya Gutkovskiy, Feb 02 2021

LINKS

Robert Israel, Table of n, a(n) for n = 0..10000

MAPLE

N:= 10: # for a(0) .. a(2^N)

g:= add(x^(2^i), i=0..N)^4:

S:= series(g, x, 2^N+1):

seq(coeff(S, x, j), j=0..2^N); # Robert Israel, Mar 27 2020

CROSSREFS

Cf. A151758.

Sequence in context: A338927 A286373 A286372 * A273938 A121613 A008438

Adjacent sequences:  A151757 A151758 A151759 * A151761 A151762 A151763

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jun 22 2009

STATUS

approved

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Last modified June 22 06:21 EDT 2021. Contains 345370 sequences. (Running on oeis4.)