A215903 - OEIS

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A215903

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

15, 203, 84550, 14050312, 37060769357, 18383354944364, 148049909203591059, 152834703746357948488, 2765650341438362598776986, 4971673449387903153569761420, 170381714096217475684749198312607

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

OFFSET

1,1

COMMENTS

Column 7 of A215904

LINKS

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

EXAMPLE

Some solutions for n=3

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

..x..4..x..4..x..5..x....x..4..x..5..x..4..x....x..3..x..4..x..5..x

..6..x..6..x..0..x..1....0..x..0..x..0..x..3....6..x..1..x..0..x..2