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A277655 Number of n X 4 0..2 arrays with every element equal to some element at offset (-1,0) (-1,1) (0,-1) (0,1) or (1,0) both plus 1 mod 3 and minus 1 mod 3, with new values introduced in order 0..2. 1
0, 2, 47, 988, 18754, 376200, 7393463, 146226480, 2887603008, 57051216021, 1127051412486, 22265930239751, 439877330194814, 8690100341205478, 171679023552691198, 3391641194032785411, 67004275330116215523 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Column 4 of A277659.
LINKS
EXAMPLE
Some solutions for n=4
..0..1..2..0. .0..1..2..0. .0..1..2..0. .0..1..0..2. .0..1..2..0
..2..1..0..1. .2..0..0..1. .2..1..0..1. .2..2..0..1. .2..0..2..1
..0..1..0..2. .1..2..0..2. .0..2..0..2. .1..0..0..2. .1..0..0..0
..1..2..1..0. .0..1..1..0. .0..1..0..1. .1..2..0..1. .2..1..1..2
CROSSREFS
Cf. A277659.
Sequence in context: A276509 A120050 A112783 * A246543 A119776 A087265
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 26 2016
STATUS
approved

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Last modified April 14 12:23 EDT 2024. Contains 371661 sequences. (Running on oeis4.)