A254803 Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally

2201616, 4771368, 11836406, 34896603, 105040512, 253515215, 434785178, 1133168035, 3388002996, 9547411698, 26675577140, 69844593335, 198216306984, 551414962883, 1593064659184, 4364229224264, 12092092436966, 33432090895408

Offset

1,1

Comments

Column 7 of A254804

Links

R. H. Hardin, Table of n, a(n) for n = 1..61

Example

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

Crossrefs

Sequence in context: A234332 A251342 A019289 * A254810 A253819 A307963

Adjacent sequences: A254800 A254801 A254802 * A254804 A254805 A254806

Keyword

nonn

Author

R. H. Hardin, Feb 08 2015

Status

approved