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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

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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