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A216087 Number of horizontal and antidiagonal neighbor colorings of the odd squares of a 5Xn array with new integer colors introduced in row major order 0
2, 27, 203, 15144, 373780, 87852160, 4044766240, 2004646634218, 142953007126612, 123560104158582188, 12361734369562410736 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 5 of A216084

LINKS

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

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

..x..1..x..2....x..2..x..3....x..0..x..4....x..4..x..0....x..4..x..5

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

..x..1..x..3....x..2..x..1....x..5..x..4....x..1..x..2....x..6..x..3

CROSSREFS

Sequence in context: A263930 A051766 A058406 * A049070 A197316 A175529

Adjacent sequences:  A216084 A216085 A216086 * A216088 A216089 A216090

KEYWORD

nonn

AUTHOR

R. H. Hardin Sep 01 2012

STATUS

approved

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Last modified April 6 12:08 EDT 2020. Contains 333273 sequences. (Running on oeis4.)