A254305 Number of (n+2)X(7+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

4351908, 57873415, 375506912, 668843106, 3675487170, 8957909107, 33988604549, 148049420699, 526744119301, 2240882621222, 9450894004634, 40727286045536, 180410729864614, 828697504037197, 3816499302562757, 18039375898446637

Offset

1,1

Comments

Column 7 of A254306

Links

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

R. H. Hardin, Empirical recurrence of order 66

Formula

Empirical recurrence of order 66 (see link above)

Example

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

Crossrefs

Sequence in context: A263155 A254266 A254259 * A237537 A276323 A288086

Adjacent sequences: A254302 A254303 A254304 * A254306 A254307 A254308

Keyword

nonn

Author

R. H. Hardin, Jan 27 2015

Status

approved