A186914 Number of (n+2)X10 0..6 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.

449959668016830, 185414592506642580, 36804096662464163093, 4617630757685272558765, 411179480114108991321807, 27790825962428614280888055, 1491377073810394581396929600

Offset: 1

Author

R. H. Hardin Feb 28 2011

Keywords

• nonn

Comments

Column 8 of A186915

Examples

			Some solutions for 4X10
..0..0..0..0..0..0..0..0..0..6....0..0..0..0..0..0..0..0..0..5
..0..0..0..0..0..0..0..0..1..4....0..0..0..0..0..0..0..0..0..6
..0..0..0..0..0..0..0..0..2..1....0..0..0..0..0..0..0..0..2..2
..0..0..0..0..0..0..0..0..5..5....0..0..0..0..0..0..0..0..6..6
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..8