A251247 Number of (n+1)X(6+1) 0..2 arrays with no 2X2 subblock having the sum of its diagonal elements less than the minimum of its antidiagonal elements.

2911869, 3975606801, 5423196612609, 7397658897202791, 10090935221593972941, 13764744150100667222985, 18776074467676820865893649, 25611879095826060637986004629, 34936394682728788460192115698193

Offset

1,1

Comments

Column 6 of A251249

Links

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

Example

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

Crossrefs

Sequence in context: A237210 A209795 A246054 * A205292 A205900 A071369

Adjacent sequences: A251244 A251245 A251246 * A251248 A251249 A251250

Keyword

nonn

Author

R. H. Hardin, Dec 01 2014

Status

approved