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A216337 Number of horizontal and antidiagonal neighbor colorings of the even squares of an nX7 array with new integer colors introduced in row major order 1
5, 136, 61915, 12297870, 33093354906, 18383343930862, 148049849072167133, 166176901557427161788, 2985013124775648539788601, 5737167226254078112766902750, 194564626464285317322710261641286 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A216338

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..17

EXAMPLE

Some solutions for n=4

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

..x..0..x..4..x..5..x....x..0..x..3..x..4..x....x..0..x..3..x..1..x

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

..x..7..x..2..x..4..x....x..5..x..2..x..5..x....x..4..x..5..x..6..x

CROSSREFS

Sequence in context: A320995 A061453 A215958 * A142294 A279307 A265875

Adjacent sequences:  A216334 A216335 A216336 * A216338 A216339 A216340

KEYWORD

nonn

AUTHOR

R. H. Hardin Sep 04 2012

STATUS

approved

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Last modified March 7 10:14 EST 2021. Contains 341869 sequences. (Running on oeis4.)