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A265883 Number of 3Xn arrays containing n copies of 0..3-1 with no element plus any horizontal neighbor equal to 3-1. 1
6, 24, 152, 894, 5748, 38296, 263484, 1849602, 13192840, 95268876, 694784964, 5108061670, 37808693148, 281458023972, 2105591552060, 15819570917916, 119302287092028, 902712209530524, 6850780687656012, 52130155754678238 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 3 of A265882.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..87

EXAMPLE

Some solutions for n=4

..0..1..2..1....2..1..0..1....0..0..1..0....2..2..1..0....0..0..0..1

..2..1..2..2....1..0..0..0....1..2..2..2....1..0..0..0....1..2..1..0

..0..0..1..0....1..2..2..2....2..1..0..1....1..2..2..1....2..2..1..2

CROSSREFS

Cf. A265882.

Sequence in context: A126267 A026947 A250743 * A165491 A165638 A122829

Adjacent sequences:  A265880 A265881 A265882 * A265884 A265885 A265886

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 17 2015

STATUS

approved

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Last modified February 17 10:59 EST 2019. Contains 320219 sequences. (Running on oeis4.)