A257205 Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock sum of the two sums of the diagonal and antidiagonal minus the two minimums of the central column and central row nondecreasing horizontally and vertically

22901, 67606, 146246, 387056, 594621, 753005, 1140763, 1355370, 1545878, 1893932, 2274326, 2671736, 3131186, 3765721, 4535616, 5400586, 6434782, 7609215, 9000962, 10630903, 12482102, 14595592, 17066214, 19940731, 23221571, 26931763, 31251495

Offset

1,1

Comments

Column 4 of A257209

Links

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

Example

Some solutions for n=3
..0..1..0..0..0..0....1..1..0..0..1..1....0..0..0..1..1..1....0..1..0..0..1..1
..0..0..0..1..1..1....0..0..0..0..0..0....0..0..0..0..0..1....1..0..0..0..1..1
..1..0..0..1..1..1....0..0..1..1..1..1....0..0..1..1..1..0....0..0..1..1..1..0
..1..0..0..1..1..1....1..0..1..1..1..1....0..0..1..1..1..0....0..0..0..0..1..1
..1..1..0..0..0..1....1..0..1..1..0..0....0..0..1..1..1..1....1..1..1..1..0..0

Crossrefs

Cf. A257209

Sequence in context: A263212 A254910 A254903 * A236039 A116062 A235778

Adjacent sequences: A257202 A257203 A257204 * A257206 A257207 A257208

Keyword

nonn

Author

R. H. Hardin, Apr 18 2015

Status

approved