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A173680 Number of ways of writing n as a sum of 6 nonnegative cubes. 12

%I #12 Aug 02 2017 10:36:21

%S 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,

%T 26,30,60,60,30,21,30,15,30,120,180,120,30,6,6,0,60,180,180,60,0,1,0,

%U 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

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

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

%H Seiichi Manyama, <a href="/A173680/b173680.txt">Table of n, a(n) for n = 0..10000</a>

%Y Cf. A173677.

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

%K nonn

%O 0,2

%A _N. J. A. Sloane_, Nov 25 2010

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Last modified April 25 07:07 EDT 2024. Contains 371964 sequences. (Running on oeis4.)