A231767 Number of (3+1)X(n+1) 0..1 arrays with no element having a strict majority of its horizontal, diagonal and antidiagonal neighbors equal to one

36, 660, 5041, 38160, 356409, 3453471, 30958096, 275036364, 2497000900, 22773363171, 206128712196, 1863472732275, 16885039757881, 153067510948440, 1386533696771344, 12557954163081200, 113765768465994225

Offset

1,1

Comments

Row 3 of A231764

Links

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

Example

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

Crossrefs

Sequence in context: A035478 A250624 A368062 * A278277 A188305 A161649

Adjacent sequences: A231764 A231765 A231766 * A231768 A231769 A231770

Keyword

nonn

Author

R. H. Hardin, Nov 13 2013

Status

approved