A222514 Number of 6Xn 0..1 arrays with exactly floor(6Xn/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..1 order

0, 44, 496, 2862, 23678, 195968, 1802656, 17117005, 168709746, 1694684254, 17289573440, 178062468561, 1845566511698, 19219604394050, 200763478955510, 2102763177782278, 22063214171071906, 231903259943200754

Offset

1,2

Comments

Row 6 of A222509

Links

R. H. Hardin, Table of n, a(n) for n = 1..26

Example

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

Crossrefs

Sequence in context: A160150 A210119 A272186 * A282645 A283541 A354608

Adjacent sequences: A222511 A222512 A222513 * A222515 A222516 A222517

Keyword

nonn

Author

R. H. Hardin Feb 23 2013

Status

approved