A216465 - OEIS

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A216465

Number of horizontal, diagonal and antidiagonal neighbor colorings of the even squares of a 7Xn array with new integer colors introduced in row major order

15, 203, 36401, 4213597, 8195008751, 3376465219485, 22530453266592757, 20538493137072741201

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

OFFSET

1,1

COMMENTS

Row 7 of A216460

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

Some solutions for n=4

..0..x..1..x....0..x..1..x....0..x..1..x....0..x..1..x....0..x..1..x

..x..2..x..0....x..2..x..0....x..2..x..0....x..2..x..0....x..2..x..0