A201378 Number of n X n 0..1 arrays with rows and columns lexicographically nondecreasing and the instance counts of every value within one of each other.

2, 3, 19, 121, 7148, 326650, 175765510, 74872992399, 400292326222730, 1748923742658486631

Offset: 1

Author

R. H. Hardin Nov 30 2011

Keywords

• nonn

Comments

Diagonal of A201384

Examples

			Some solutions for n=5
..0..0..0..0..1....0..0..0..1..1....0..0..0..1..1....0..0..0..0..0
..0..0..1..1..0....0..0..0..1..1....0..0..1..0..0....0..1..1..1..1
..0..1..1..1..0....0..0..1..0..1....0..1..0..0..0....1..0..0..0..1
..1..0..0..1..1....0..1..1..0..1....0..1..1..0..1....1..0..0..0..1
..1..0..1..1..0....1..0..0..1..1....1..1..1..1..1....1..0..1..1..1