A307739 Number of partitions of n^4 into at most n fourth powers.

1, 1, 1, 1, 1, 2, 2, 2, 1, 5, 3, 5, 2, 27, 4, 78, 14, 152, 551, 1331, 7377

Offset

0,6

Links

Table of n, a(n) for n=0..20.

Eric Weisstein's World of Mathematics, Biquadratic Number

Example

10^4 =
4^4 + 4^4 + 6^4 + 8^4 + 8^4 =
2^4 + 4^4 + 4^4 + 4^4 + 4^4 + 4^4 + 4^4 + 4^4 + 8^4 + 8^4,
so a(10) = 3.

Crossrefs

Cf. A000583, A105152, A259793, A299169, A299195, A307644, A307738.

Sequence in context: A372014 A350587 A184242 * A109978 A114293 A295691

Adjacent sequences: A307736 A307737 A307738 * A307740 A307741 A307742

Keyword

nonn,more

Author

Ilya Gutkovskiy, Apr 25 2019

Status

approved