A186912 Number of (n+2)X8 0..6 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.

4028133387613, 921058887545363, 110909004238159456, 8880688768983407407, 522748636954347087650, 23991605690718487651365, 893383694291331850798966, 27790825962428614280888055, 738601710673817085331465603

Offset: 1

Author

R. H. Hardin Feb 28 2011

Keywords

• nonn

Comments

Column 6 of A186915

Examples

			Some solutions for 4X8
..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..5....0..0..0..0..0..0..0..5
..0..0..0..0..0..0..0..3....0..0..0..0..0..0..2..4....0..0..0..0..0..0..1..3
..0..0..0..0..0..0..2..4....0..0..0..0..0..0..6..2....0..0..0..0..0..0..3..6
..0..0..0..0..0..0..4..4....0..0..0..0..0..0..6..5....0..0..0..0..0..0..4..0
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..19