A184249 Number of strings of numbers x(i=1..n) in 0..n with sum i^3*x(i) equal to n^4

1, 1, 2, 3, 10, 79, 739, 7939, 96242, 1284107, 18521979, 285752469, 4670442400, 80275705482, 1442477757007

Offset

1,3

Comments

Diagonal of A184257

Links

Table of n, a(n) for n=1..15.

Example

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

Crossrefs

Sequence in context: A124923 A291935 A088222 * A270356 A333332 A229220

Adjacent sequences: A184246 A184247 A184248 * A184250 A184251 A184252

Keyword

nonn

Author

R. H. Hardin Jan 10 2011

Status

approved