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A254490
Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock diagonal maximum plus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally
1
20872192, 1608739904, 111699091200, 8153154979328, 566704583699968, 39847094492435712, 2791393651770044928, 195729911005053100544, 13689397617466091628032, 959275333788055608747520
OFFSET
1,1
COMMENTS
Column 7 of A254491
LINKS
EXAMPLE
Some solutions for n=1
..0..0..0..0..0..0..0..0..1....0..0..0..0..0..0..0..0..1
..0..1..1..1..1..1..1..0..0....1..0..1..0..0..1..0..0..1
..0..0..1..0..1..0..0..0..1....0..1..1..0..1..1..0..1..1
CROSSREFS
Sequence in context: A321670 A356071 A254497 * A253862 A172729 A174115
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 31 2015
STATUS
approved