A254266 Number of (7+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two maximums of the diagonal and antidiagonal minus the sum of the minimums of the central row and column nondecreasing horizontally, vertically and ne-to-sw antidiagonally

4351908, 15380009, 21120938, 98883824, 214982444, 933774220, 3756830312, 12919040677, 55925981338, 221330313736, 941086616376, 4132513530611, 18293591609024, 84175293829595, 391626609393534, 1839470200869462

Offset

1,1

Comments

Row 7 of A254260

Links

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

R. H. Hardin, Empirical recurrence of order 65

Formula

Empirical recurrence of order 65 (see link above)

Example

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

Crossrefs

Sequence in context: A015349 A210403 A263155 * A254259 A254305 A237537

Adjacent sequences: A254263 A254264 A254265 * A254267 A254268 A254269

Keyword

nonn

Author

R. H. Hardin, Jan 27 2015

Status

approved