A222671 Number of nX6 0..2 arrays with exactly floor(nX6/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..2 order

8, 80, 1336, 20606, 426362, 9334575, 244592240, 6696876400, 189469189930, 5486076619642, 160969581159830, 4753772105875149, 140756030057698872, 4174584083484598931, 123964025120779460314, 3684029351402136756157

Offset

1,1

Comments

Column 6 of A222673

Links

R. H. Hardin, Table of n, a(n) for n = 1..34

Example

Some solutions for n=3
..0..0..0..0..0..0....0..0..0..0..0..1....0..0..1..1..1..1....0..0..0..0..0..0
..0..0..0..1..0..0....0..0..0..0..0..1....1..1..1..1..1..1....1..2..0..0..0..0
..0..0..2..2..0..0....0..0..0..2..1..0....2..0..1..1..1..1....0..2..0..0..0..0

Crossrefs

Sequence in context: A002718 A222825 A057707 * A271443 A347768 A240325

Adjacent sequences: A222668 A222669 A222670 * A222672 A222673 A222674

Keyword

nonn

Author

R. H. Hardin Feb 28 2013

Status

approved