A184316 Number of strings of numbers x(i=1..n) in 0..7 with sum i^2*x(i)^3 equal to n^2*343.

1, 1, 1, 1, 3, 7, 69, 574, 3336, 23562, 140933, 948340, 5733551, 37091416, 225775799, 1419329282, 8589008422

Offset: 1

Author

R. H. Hardin Jan 10 2011

Keywords

• nonn

Comments

Column 7 of A184318

Examples

			All solutions for n=5
..0....0....7
..0....0....4
..0....7....4
..0....7....5
..7....0....6