A254265 Number of (6+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.

1021428, 3647288, 6729896, 29231312, 87535036, 325742026, 1249946456, 4118577869, 14578660698, 50829856296, 176936089464, 578710050363, 2053416888304, 7026417068819, 22843396075358, 81175945400214

Offset

1,1

Comments

Row 6 of A254260

Links

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

R. H. Hardin, Empirical recurrence of order 53

Formula

Empirical recurrence of order 53 (see link above)

Example

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

Crossrefs

Sequence in context: A293127 A190381 A295437 * A254258 A254304 A346266

Adjacent sequences: A254262 A254263 A254264 * A254266 A254267 A254268

Keyword

nonn

Author

R. H. Hardin, Jan 27 2015

Status

approved