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A346566
Number of compositions (ordered partitions) of n^4 into fourth powers.
1
1, 1, 2, 14474, 131204813713122, 132431858995585724536583901671708647, 20717425607872632053632351670738034346764162305716050849113959210873829416
OFFSET
0,3
COMMENTS
The next term is too large to include.
FORMULA
a(n) = [x^(n^4)] 1 / (1 - Sum_{k>=1} x^(k^4)).
MATHEMATICA
Table[SeriesCoefficient[1/(1 - Sum[x^(k^4), {k, 1, n}]), {x, 0, n^4}], {n, 0, 6}]
CROSSREFS
KEYWORD
nonn
AUTHOR
Ilya Gutkovskiy, Jul 23 2021
STATUS
approved