A250954 Number of (n+1)X(6+1) 0..1 arrays with no 2X2 subblock having its maximum diagonal element less than its minimum antidiagonal element.

10864, 941192, 81431944, 7045780240, 609622239024, 52746349035592, 4563772381621072, 394871276236514256, 34165447249322574280, 2956096975721586686992, 255770377182374037886152

Offset: 1

Author

R. H. Hardin, Nov 28 2014

Keywords

• nonn

Comments

Column 6 of A250956

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210

Formula

Empirical: a(n) = 103*a(n-1) -1452*a(n-2) +1999*a(n-3) +25412*a(n-4) -90159*a(n-5) +84285*a(n-6) +261*a(n-7) -20412*a(n-8) +4212*a(n-9)