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A215923 Number of diagonal and antidiagonal neighbor colorings of the odd squares of an nX7 array with new integer colors introduced in row major order 0
5, 203, 12840, 14050312, 4044766240, 18383354944364, 12954733199158688, 152834703746357948488, 204451724239460493425216, 4971673449387903153569761420, 10980920102796579166081443367088 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A215924

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A196587 A197044 A216615 * A208468 A070906 A208052

Adjacent sequences:  A215920 A215921 A215922 * A215924 A215925 A215926

KEYWORD

nonn

AUTHOR

R. H. Hardin Aug 27 2012

STATUS

approved

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Last modified May 25 11:07 EDT 2020. Contains 334592 sequences. (Running on oeis4.)