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A230067
Number of nX7 0..2 arrays x(i,j) with each element diagonally or antidiagonally next to at least one element with value 2-x(i,j).
1
0, 3969, 266805, 137945025, 43142680647, 15615593045649, 5392746297039195, 1888668174848027049, 658744922326993528365, 230036351941714961424609, 80301571203375381579772923, 28034704123779041409942781569
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OFFSET
1,2
COMMENTS
Column 7 of
A230068
LINKS
R. H. Hardin,
Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=3
..1..1..0..0..0..1..2....0..2..2..1..2..0..0....0..1..0..1..0..1..2
..1..1..1..2..2..0..1....0..2..1..0..1..2..2....2..2..1..2..2..0..1
..1..1..1..0..0..0..2....0..1..2..1..0..0..0....0..0..0..1..2..0..2
CROSSREFS
Sequence in context:
A329786
A343024
A343002
*
A393871
A031561
A031741
Adjacent sequences:
A230064
A230065
A230066
*
A230068
A230069
A230070
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Oct 08 2013
STATUS
approved
