A216459 - OEIS

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A216459

Number of horizontal, diagonal and antidiagonal neighbor colorings of the even squares of an nX7 array with new integer colors introduced in row major order

5, 52, 17733, 2711768, 6423148007, 3030359756694, 22530453266592757, 22413340656366875404, 380159173982235374080849, 663445132155786673512833428, 21523865504501144083392978709171

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 7 of A216460

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

Some solutions for n=4

..0..x..1..x..2..x..3....0..x..1..x..2..x..3....0..x..1..x..2..x..3

..x..2..x..3..x..0..x....x..2..x..0..x..4..x....x..2..x..0..x..4..x

..0..x..4..x..5..x..3....0..x..1..x..2..x..1....0..x..5..x..6..x..7