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A253858
Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal minimum nondecreasing horizontally and vertically
1
19456, 291392, 4186496, 54933632, 700079360, 9090451328, 118920758784, 1541740409984, 20040279401216, 260372862960000, 3382959819079680, 43972750683508352, 571716808018664704, 7430928932383333248
OFFSET
1,1
COMMENTS
Column 3 of A253863
FORMULA
Empirical recurrence of order 70 (see link above)
EXAMPLE
Some solutions for n=1
..0..0..1..0..0....1..1..1..0..1....0..1..0..0..1....1..0..1..1..0
..1..1..1..0..0....1..1..1..0..1....0..0..1..1..1....1..0..0..0..1
..0..0..1..1..1....0..0..0..0..1....1..1..0..1..1....0..0..1..1..1
CROSSREFS
Sequence in context: A140930 A254486 A254493 * A336982 A345574 A345575
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 17 2015
STATUS
approved