A183419 T(n,k)=Number of nXk 0..2 arrays with each sum of a(1..i,1..j) no greater than i*j.
2, 5, 5, 13, 34, 13, 35, 249, 249, 35, 96, 1920, 5257, 1920, 96, 267, 15232, 118128, 118128, 15232, 267, 750, 123323, 2748326, 7798591, 2748326, 123323, 750, 2123, 1012996, 65521060, 535504390, 535504390, 65521060, 1012996, 2123, 6046, 8413325
Offset: 1
Examples
Some solutions for 5X4 ..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0 ..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0 ..0..0..1..1....0..0..2..1....0..0..2..0....0..1..0..0....0..0..1..1 ..1..1..0..2....0..0..2..1....0..0..1..0....1..1..1..1....0..2..2..2 ..2..1..2..0....2..1..0..0....0..2..1..0....0..2..2..0....1..2..2..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..97
Crossrefs
Column 1 is A005773(n+1)
Comments