A184712 Number of strings of numbers x(i=1..n) in 0..n with sum i*x(i)^3 equal to n^4

1, 1, 2, 2, 6, 65, 560, 6939, 89952, 1372469, 22986721, 423073642, 8439627699

Offset

1,3

Comments

Diagonal of A184720

Links

Table of n, a(n) for n=1..13.

Example

All solutions for n=5
..3....0....5....0....4....3
..5....0....0....5....4....3
..2....0....0....5....3....4
..1....0....5....0....2....2
..4....5....0....0....4....4

Crossrefs

Sequence in context: A329571 A270358 A156529 * A303225 A326943 A304564

Adjacent sequences: A184709 A184710 A184711 * A184713 A184714 A184715

Keyword

nonn

Author

R. H. Hardin Jan 20 2011

Status

approved