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A199147 Number of nX6 0..3 arrays with values 0..3 introduced in row major order and each element equal to one or two horizontal and vertical neighbors 0
6, 2539, 794416, 316561994, 117380324984, 44832664800117, 16925667317073175 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 6 of A199149
LINKS
EXAMPLE
Some solutions for n=3
..0..1..1..1..1..2....0..0..1..2..3..3....0..1..0..0..2..2....0..0..1..1..1..2
..0..1..0..2..1..2....0..1..1..2..0..3....0..1..1..0..2..2....1..1..3..3..0..2
..0..1..0..2..1..1....0..0..0..0..0..3....0..0..1..3..3..3....1..1..0..0..0..2
CROSSREFS
Sequence in context: A264801 A067630 A181700 * A097871 A210004 A198667
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 03 2011
STATUS
approved

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Last modified March 28 10:31 EDT 2024. Contains 371240 sequences. (Running on oeis4.)