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A230672
Number of n X 5 0..2 arrays x(i,j) with each element horizontally, diagonally or antidiagonally next to at least one element with value 2-x(i,j).
1
15, 3387, 340563, 37034355, 4022141121, 436827078531, 47444197636239, 5152946201086569, 559664961809994753, 60785594007085980027, 6601964808003397959249, 717043900743978231419349
OFFSET
1,1
COMMENTS
Column 5 of A230675.
FORMULA
Empirical recurrence of order 80 (see link above).
EXAMPLE
Some solutions for n=3
..0..0..2..1..1....0..0..0..1..1....0..0..1..1..1....0..0..2..1..2
..2..2..1..1..0....1..2..2..0..2....2..2..1..0..2....1..2..0..0..1
..2..0..0..2..1....0..1..0..2..0....0..2..0..1..1....0..1..1..1..2
CROSSREFS
Cf. A230675.
Sequence in context: A278630 A161584 A013720 * A145189 A182283 A194479
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 27 2013
STATUS
approved