A257269 Number of (n+2)X(4+2) 0..2 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum equal to the central column sum

13089924, 380991361, 4497848356, 59496966400, 498831438400, 4488101568196, 31552778558596, 232279485155524, 1489426595748100, 9809415221570064, 59889828344832256, 371397537426275721, 2213810688640896016

Offset

1,1

Comments

Column 4 of A257270

Links

Table of n, a(n) for n=1..13.

Example

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

Crossrefs

Cf. A257270

Sequence in context: A210182 A210412 A048937 * A283274 A343083 A342687

Adjacent sequences: A257266 A257267 A257268 * A257270 A257271 A257272

Keyword

nonn

Author

R. H. Hardin, Apr 19 2015

Status

approved