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A265864 Number of 3Xn arrays containing n copies of 0..3-1 with no element plus any vertical neighbor equal to 3-1. 1
2, 22, 152, 1462, 13772, 139144, 1431824, 15086614, 161254844, 1745205892, 19070813984, 210091931944, 2330150737904, 25993622086384, 291414635747552, 3281265369826774, 37087677409301804, 420618333874721044 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 3 of A265863.
LINKS
EXAMPLE
Some solutions for n=4
..1..2..0..0....0..0..1..1....1..0..2..1....0..2..0..1....2..2..2..2
..0..2..1..1....0..1..2..2....0..0..2..2....0..2..1..0....1..1..1..1
..1..2..0..2....1..0..2..2....0..1..2..1....1..2..2..1....0..0..0..0
CROSSREFS
Cf. A265863.
Sequence in context: A232977 A282819 A123960 * A091169 A279380 A230835
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 17 2015
STATUS
approved

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Last modified May 27 03:56 EDT 2024. Contains 372847 sequences. (Running on oeis4.)