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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
0
5, 52, 17733, 2711768, 6423148007, 3030359756694, 22530453266592757, 22413340656366875404, 380159173982235374080849, 663445132155786673512833428, 21523865504501144083392978709171
OFFSET
1,1
COMMENTS
Column 7 of A216460
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
..x..5..x..0..x..2..x....x..5..x..4..x..6..x....x..4..x..1..x..0..x
CROSSREFS
Sequence in context: A208303 A215902 A215846 * A107803 A255579 A088712
KEYWORD
nonn
AUTHOR
R. H. Hardin Sep 07 2012
STATUS
approved