A254304 Number of (n+2)X(6+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 and vertically

1021428, 11552577, 69860227, 170114970, 821922862, 2586900868, 8957909107, 36351177418, 119487334237, 419660707762, 1531339859535, 5307620979044, 17672761975717, 64960251553840, 225626107170115, 756372252870150

Offset

1,1

Comments

Column 6 of A254306

Links

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

R. H. Hardin, Empirical recurrence of order 54

Formula

Empirical recurrence of order 54 (see link above)

Example

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

Crossrefs

Sequence in context: A295437 A254265 A254258 * A346266 A218019 A074667

Adjacent sequences: A254301 A254302 A254303 * A254305 A254306 A254307

Keyword

nonn

Author

R. H. Hardin, Jan 27 2015

Status

approved