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A222572

Number of nX7 0..2 arrays with no more than floor(nX7/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order.

17, 292, 3999, 212957, 4102865, 278335019, 7240361264, 617491399888, 18298988998017, 1694595769301401, 52003776367692101, 4919456993064095471, 152349901845469645928, 14488875201941399981117, 449914171737778687124896

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OFFSET

1,1

COMMENTS

Column 7 of A222573

LINKS

Table of n, a(n) for n=1..15.

EXAMPLE

Some solutions for n=3

..0..1..1..1..1..1..1....0..1..1..2..2..2..2....0..0..1..0..0..0..0

..1..1..0..1..1..1..1....2..0..2..2..2..2..2....2..0..0..0..0..0..0

..2..1..0..1..1..1..1....0..0..2..2..2..2..2....0..0..2..0..0..0..0