OFFSET
0,4
COMMENTS
Number of positive solutions to (x_1)^3 + (x_2)^3 + ... + (x_n)^3 <= n^3.
MATHEMATICA
Join[{1}, Table[SeriesCoefficient[1/(1 - x) Sum[x^k^3, {k, 1, n}]^n, {x, 0, n^3}], {n, 20}]]
CROSSREFS
KEYWORD
nonn
AUTHOR
Ilya Gutkovskiy, Apr 24 2018
STATUS
approved