A253995 Number of (3+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal median plus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally

11872, 71116, 477856, 3060398, 20022358, 133063670, 890259584, 5899215927, 39196387788, 260248078913, 1725703804020, 11432869318075, 75714991386512, 501055128371203, 3313759490215024, 21903446778478467, 144699405028716180

Offset

1,1

Comments

Row 3 of A253993

Links

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

Example

Some solutions for n=2
..0..1..1..0....1..0..0..1....0..0..1..1....1..1..0..0....0..0..0..0
..0..0..0..1....1..0..0..1....0..0..0..1....1..0..0..0....0..0..0..0
..0..1..0..0....1..0..0..0....0..0..0..1....0..1..1..1....0..0..1..0
..0..1..1..0....0..0..0..0....0..1..1..1....0..1..0..0....1..0..1..0
..0..1..1..0....1..0..0..0....1..0..0..0....1..1..1..1....1..1..1..1

Crossrefs

Sequence in context: A251788 A194776 A253988 * A258905 A232673 A342351

Adjacent sequences: A253992 A253993 A253994 * A253996 A253997 A253998

Keyword

nonn

Author

R. H. Hardin, Jan 21 2015

Status

approved