A231768 Number of (4+1)X(n+1) 0..1 arrays with no element having a strict majority of its horizontal, diagonal and antidiagonal neighbors equal to one

81, 3213, 40000, 493695, 8231161, 143424652, 2217939025, 34022084475, 540272041024, 8624998783485, 135974699750761, 2140797614249280, 33837345338388601, 535135681749071815, 8451720496022804100

Offset

1,1

Comments

Row 4 of A231764

Links

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

Example

Some solutions for n=3
..0..1..0..0....1..0..0..0....1..0..0..0....0..0..0..0....0..0..1..1
..0..0..0..1....0..0..0..1....0..0..1..0....1..1..1..1....0..0..0..0
..0..0..1..0....0..1..0..1....1..0..0..1....0..0..0..1....1..1..0..1
..0..0..0..1....0..0..1..0....0..0..0..0....0..0..0..0....0..0..0..0
..0..0..0..1....0..0..0..1....1..1..1..1....1..0..1..0....1..0..0..1

Crossrefs

Sequence in context: A143652 A270343 A236894 * A017797 A205207 A254415

Adjacent sequences: A231765 A231766 A231767 * A231769 A231770 A231771

Keyword

nonn

Author

R. H. Hardin, Nov 13 2013

Status

approved