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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
1
4351908, 57873415, 375506912, 668843106, 3675487170, 8957909107, 33988604549, 148049420699, 526744119301, 2240882621222, 9450894004634, 40727286045536, 180410729864614, 828697504037197, 3816499302562757, 18039375898446637
OFFSET
1,1
COMMENTS
Column 7 of A254306
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
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 27 2015
STATUS
approved