A173680 - OEIS

A173680

Number of ways of writing n as a sum of 6 nonnegative cubes.

1, 6, 15, 20, 15, 6, 1, 0, 6, 30, 60, 60, 30, 6, 0, 0, 15, 60, 90, 60, 15, 0, 0, 0, 20, 60, 60, 26, 30, 60, 60, 30, 21, 30, 15, 30, 120, 180, 120, 30, 6, 6, 0, 60, 180, 180, 60, 0, 1, 0, 0, 60, 120, 60, 15, 60, 90, 60, 15, 30, 30, 0, 60, 180, 186, 90, 60, 66, 30, 6, 90, 180, 120, 120, 180, 120, 30, 0, 60, 60, 60, 200, 240, 120, 20, 0, 15, 0, 60, 180, 180

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OFFSET

0,2

COMMENTS

Order matters. This is the coefficient of q^n in the expansion of {Sum_{m>=0} q^(m^3)}^6.

LINKS

Seiichi Manyama, Table of n, a(n) for n = 0..10000

CROSSREFS

Cf. A173677.

Sums of k cubes, number of ways of writing n as, for k=1..9: A010057, A173677, A051343, A173678, A173679, A173680, A173676, A173681, A173682.

Sequence in context: A001484 A217480 A335417 * A230209 A277951 A176849

Adjacent sequences: A173677 A173678 A173679 * A173681 A173682 A173683

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Nov 25 2010

STATUS

approved