A254548 Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally

12260, 34780, 129677, 380406, 1191782, 3475823, 10616893, 30951404, 91111523, 263691372, 765987141, 2212780259, 6400292026, 18481547366, 53384959100, 154095389517, 444743856855, 1283213627777, 3702061169641, 10678951509680

Offset

1,1

Comments

Column 3 of A254553

Links

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

R. H. Hardin, Empirical recurrence of order 91

Formula

Empirical recurrence of order 91 (see link above)

Example

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

Crossrefs

Sequence in context: A166000 A252500 A252497 * A254555 A254478 A186046

Adjacent sequences: A254545 A254546 A254547 * A254549 A254550 A254551

Keyword

nonn

Author

R. H. Hardin, Feb 01 2015

Status

approved