A184715 Number of strings of numbers x(i=1..n) in 0..4 with sum i*x(i)^3 equal to n*64

1, 1, 2, 2, 6, 22, 125, 467, 1669, 6070, 22559, 82566, 297554, 1051581, 3645141, 12437607, 41861648, 138913639, 454992647, 1471640292, 4703510789, 14860920840, 46445544294, 143657460676, 439924290065, 1334372714797, 4010370283394

Offset

1,3

Comments

Column 4 of A184720

Links

R. H. Hardin, Table of n, a(n) for n = 1..66

Example

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

Crossrefs

Sequence in context: A097090 A085403 A112478 * A292319 A290653 A138801

Adjacent sequences: A184712 A184713 A184714 * A184716 A184717 A184718

Keyword

nonn

Author

R. H. Hardin Jan 20 2011

Status

approved