A250953 Number of (n+1)X(5+1) 0..1 arrays with no 2X2 subblock having its maximum diagonal element less than its minimum antidiagonal element.

2911, 134456, 6204344, 286298344, 13211127617, 609622239024, 28130774228952, 1298083303266168, 59899533694064023, 2764039970645608136, 127545516428291433088, 5885536726506369363688, 271585732913285543900561

Offset: 1

Author

R. H. Hardin, Nov 28 2014

Keywords

• nonn

Comments

Column 5 of A250956

Examples

			Some solutions for n=2
..1..1..0..0..0..1....0..0..0..0..1..1....1..1..0..1..1..0....0..1..1..0..1..1
..0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..1..1..1....1..1..1..0..0..1
..0..1..0..1..1..0....1..1..1..1..1..1....1..1..1..1..0..1....1..0..1..1..0..0
		

Links

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

Formula

Empirical: a(n) = 57*a(n-1) -516*a(n-2) +637*a(n-3) +2799*a(n-4) -3639*a(n-5) -100*a(n-6) +429*a(n-7)