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A216081 Number of horizontal and antidiagonal neighbor colorings of the odd squares of an nX5 array with new integer colors introduced in row major order 1
1, 12, 136, 12840, 373780, 99827160, 5116799368, 2751754706832, 212339816996032, 194478305002268064, 20707051422399128416, 29191372156840204219200, 4055642578974004982217280, 8220961603626446873042001408 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 5 of A216084

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..49

EXAMPLE

Some solutions for n=4

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

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

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

..1..x..6..x..1....6..x..5..x..1....1..x..4..x..1....4..x..5..x..0

CROSSREFS

Sequence in context: A030023 A194013 A189501 * A264503 A000467 A059517

Adjacent sequences:  A216078 A216079 A216080 * A216082 A216083 A216084

KEYWORD

nonn

AUTHOR

R. H. Hardin Sep 01 2012

STATUS

approved

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Last modified September 27 20:35 EDT 2020. Contains 337388 sequences. (Running on oeis4.)