A184297 Number of strings of numbers x(i=1..n) in 0..3 with sum i^3*x(i)^2 equal to n^3*9

1, 1, 1, 1, 1, 5, 4, 18, 52, 84, 243, 844, 2265, 6462, 15993, 52222, 136310, 389017, 998916, 2953402, 7916043, 21798836, 57115869, 161252708, 426637798, 1149156169, 3004327516, 8128762648, 21242600043

Offset

1,6

Comments

Column 3 of A184303

Links

Table of n, a(n) for n=1..29.

Example

All solutions for n=5
..0
..0
..0
..0
..3

Crossrefs

Sequence in context: A100791 A056883 A006747 * A108412 A205008 A133167

Adjacent sequences: A184294 A184295 A184296 * A184298 A184299 A184300

Keyword

nonn

Author

R. H. Hardin Jan 10 2011

Status

approved