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A216077 Number of horizontal and antidiagonal neighbor colorings of the odd squares of an n X n array with new integer colors introduced in row major order 0
1, 1, 5, 602, 373780, 33093252880, 14216413305846436, 2562708724272040433794232, 2209363619821632289359062591728192 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Diagonal of A216084

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

Some solutions for n=4

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

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

..x..4..x..3....x..2..x..4....x..2..x..3....x..3..x..4....x..1..x..3

..3..x..4..x....0..x..2..x....0..x..2..x....5..x..3..x....3..x..4..x

CROSSREFS

Sequence in context: A303100 A302951 A208298 * A297949 A298558 A298768

Adjacent sequences:  A216074 A216075 A216076 * A216078 A216079 A216080

KEYWORD

nonn

AUTHOR

R. H. Hardin Sep 01 2012

STATUS

approved

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Last modified October 22 15:08 EDT 2021. Contains 348171 sequences. (Running on oeis4.)