A240633 Number of nX5 0..1 arrays with no element equal to exactly three horizontal or vertical neighbors, with new values 0..1 introduced in row major order

16, 264, 3147, 38634, 470170, 5723270, 69637692, 847232955, 10307784448, 125409399932, 1525791874675, 18563527698251, 225852928912285, 2747836877644115, 33431523541130644, 406744219230779790

Offset

1,1

Comments

Column 5 of A240636

Links

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

Example

Some solutions for n=4
..0..1..0..0..1....0..1..1..0..0....0..1..0..1..0....0..1..0..0..0
..0..0..0..1..0....0..0..0..1..1....0..1..0..1..0....1..0..1..1..1
..1..1..1..0..0....1..1..0..1..0....1..0..1..0..1....1..0..1..0..0
..0..0..1..0..1....0..1..1..0..0....1..0..0..1..0....0..0..1..1..1

Crossrefs

Sequence in context: A303516 A240481 A180809 * A068770 A113359 A236516

Adjacent sequences: A240630 A240631 A240632 * A240634 A240635 A240636

Keyword

nonn

Author

R. H. Hardin, Apr 09 2014

Status

approved