A254018 Number of (n+2)X(6+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally

404672, 806538, 2360757, 8285305, 8213023, 12820652, 26519069, 34765879, 46504548, 78312596, 126840906, 207953344, 361339368, 611751066, 1054419972, 1868901933, 3294200189, 5849649134, 10439241104, 18677018702, 33561673772

Offset

1,1

Comments

Column 6 of A254020

Links

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

Example

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

Crossrefs

Sequence in context: A227711 A247305 A254025 * A254892 A204764 A252626

Adjacent sequences: A254015 A254016 A254017 * A254019 A254020 A254021

Keyword

nonn

Author

R. H. Hardin, Jan 22 2015

Status

approved