A258905 Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal median plus antidiagonal median nondecreasing horizontally and vertically

11872, 86968, 659792, 5271330, 38603552, 279149887, 2026873370, 14414890711, 101729978782, 713646685384, 4972387097538, 34447528903062, 237597968142112, 1632011477851887, 11168737053194688, 76188905928464959, 518233427901264780

Offset

1,1

Comments

Column 3 of A258910

Links

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

Example

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

Crossrefs

Cf. A258910

Sequence in context: A194776 A253988 A253995 * A232673 A342351 A186603

Adjacent sequences: A258902 A258903 A258904 * A258906 A258907 A258908

Keyword

nonn

Author

R. H. Hardin, Jun 14 2015

Status

approved