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A196016
Number of nX7 0..4 arrays with each element equal to the number its horizontal and vertical neighbors within one of itself
1
1, 9, 32, 231, 835, 3572, 22711, 100094, 517009, 2740712, 14291156, 72486659, 375604408, 1948549100, 10070403094, 52010772351, 269069912146, 1391421035119, 7193724490586, 37198028475134, 192356730926735, 994618459574872
OFFSET
1,2
COMMENTS
Column 7 of A196017
LINKS
EXAMPLE
Some solutions for n=4
..2..3..3..3..3..2..2....2..2..3..3..2..3..2....2..3..3..3..3..3..2
..3..3..4..4..3..0..2....2..0..2..3..0..2..3....3..3..4..4..4..3..3
..2..0..3..4..4..3..3....3..2..0..3..2..0..2....2..0..3..3..3..0..2
..2..2..3..3..3..3..2....2..3..2..3..3..2..2....2..2..2..0..2..2..2
CROSSREFS
Sequence in context: A229444 A300773 A317279 * A183426 A061913 A264512
KEYWORD
nonn
AUTHOR
R. H. Hardin Sep 26 2011
STATUS
approved