A254889 Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal median nondecreasing horizontally and vertically

9560, 35296, 171400, 822072, 2580056, 8115610, 23589212, 59995430, 145387986, 331801795, 719425086, 1522572859, 3138860414, 6329390631, 12570672314, 24624380444, 47807796436, 92338992457, 177468932212, 339829018669

Offset

1,1

Comments

Column 3 of A254894

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..1..0..1....0..1..0..0..1
..1..0..0..1..1....0..0..0..0..0....0..0..0..0..0....0..0..0..0..1
..1..1..1..1..1....0..0..0..1..1....0..0..0..0..0....0..1..1..1..1
..0..1..0..1..1....1..0..1..1..0....1..1..0..1..1....0..1..1..1..1
..0..1..0..1..1....0..1..1..0..0....0..0..0..1..1....0..0..0..0..1

Crossrefs

Sequence in context: A136479 A254015 A254022 * A133449 A275687 A210409

Adjacent sequences: A254886 A254887 A254888 * A254890 A254891 A254892

Keyword

nonn

Author

R. H. Hardin, Feb 10 2015

Status

approved