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A254486
Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally
1
19456, 278848, 3912576, 50028672, 640020096, 8348864128, 109168144000, 1413241384576, 18387122007680, 238919596322432, 3105091464081024, 40365421515320960, 524818036499951232, 6821133051554639488
OFFSET
1,1
COMMENTS
Column 3 of A254491
FORMULA
Empirical recurrence of order 66 (see link above)
EXAMPLE
Some solutions for n=1
..1..0..0..1..0....0..1..1..0..0....0..0..1..0..0....0..1..1..0..0
..1..1..0..1..1....1..0..0..1..0....0..1..1..1..0....0..1..0..0..1
..1..0..1..1..1....0..0..0..0..0....0..0..1..0..0....0..1..1..0..1
CROSSREFS
Sequence in context: A321642 A204592 A140930 * A254493 A253858 A336982
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 31 2015
STATUS
approved