A257429 - OEIS

A257429

Number of (4+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally

41140, 119393, 449022, 1770206, 5985744, 19771628, 64652177, 195603505, 586920722, 1743331948, 5079106522, 14663485366, 42004087573, 119219661191, 336143582507, 942853480005, 2631756218200, 7318423088042, 20289444965118

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Row 4 of A257426

LINKS

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

EXAMPLE

Some solutions for n=2

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

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

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