A254806 Number of (3+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally

12680, 46026, 133628, 362924, 1133390, 3598070, 11836406, 37936764, 125487216, 402542545, 1314613212, 4204596324, 13623221472, 43708937976, 141416903594, 455887528023, 1476834502912, 4779457689557, 15509056463304, 50322669190606

Offset

1,1

Comments

Row 3 of A254804

Links

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

Example

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

Crossrefs

Sequence in context: A251478 A159203 A254799 * A253815 A083602 A105655

Adjacent sequences: A254803 A254804 A254805 * A254807 A254808 A254809

Keyword

nonn

Author

R. H. Hardin, Feb 08 2015

Status

approved