A184311 Number of strings of numbers x(i=1..n) in 0..2 with sum i^2*x(i)^3 equal to n^2*8.

1, 1, 1, 2, 2, 2, 3, 8, 12, 21, 47, 117, 316, 707, 1806, 4044, 9736, 21215, 47912, 104631, 225418, 486719, 1024621, 2189311, 4554744, 9632597, 19938907, 41704600, 86022324, 177951143, 365177921, 746905649, 1521061254, 3075578686, 6201375023

Offset: 1

Author

R. H. Hardin Jan 10 2011

Keywords

• nonn

Comments

Column 2 of A184318

Examples

			All solutions for n=5
..0....0
..0....0
..0....2
..0....2
..2....0
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..61