A254799 Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally

12680, 40167, 133628, 351264, 1200192, 3633517, 12325478, 38276893, 128187410, 405105944, 1331704432, 4254116411, 13863454578, 44643253435, 145048675394, 469389806478, 1524517587338, 4947289882647, 16076937597652, 52251576307768

Offset

1,1

Comments

Column 3 of A254804

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=3
..0..0..0..0..1....0..0..1..1..1....0..0..0..0..0....0..0..1..0..1
..0..0..0..1..1....0..1..1..1..1....0..1..1..1..1....1..0..1..0..0
..1..0..1..1..1....1..1..0..1..0....1..1..0..0..0....1..1..1..0..0
..1..1..1..1..1....1..0..1..0..0....1..1..0..1..1....0..0..1..1..1
..1..1..0..1..0....0..1..0..0..1....1..0..0..1..1....0..1..1..1..1

Crossrefs

Sequence in context: A252351 A251478 A159203 * A254806 A253815 A083602

Adjacent sequences: A254796 A254797 A254798 * A254800 A254801 A254802

Keyword

nonn

Author

R. H. Hardin, Feb 08 2015

Status

approved