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A198527
Number of nX7 0..4 arrays with values 0..4 introduced in row major order and each element equal to no more than two horizontal and vertical neighbors
1
855, 47436498, 3201911378187, 217885196778717007, 14827770532074166305565, 1009078065869144136137180812
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A198528
LINKS
Table of n, a(n) for n=1..6.
EXAMPLE
Some solutions for n=4
..0..0..0..1..0..0..2....0..0..0..1..0..2..3....0..0..0..1..0..2..2
..1..1..0..0..2..1..3....1..1..0..0..2..4..1....1..1..0..0..2..3..0
..0..0..1..0..2..3..0....0..0..1..0..2..2..1....0..0..1..0..2..1..1
..0..0..1..0..0..3..4....0..0..1..0..0..0..4....0..0..1..0..0..0..3
CROSSREFS
Sequence in context: A100969 A183998 A209502 * A234885 A251453 A087002
Adjacent sequences: A198524 A198525 A198526 * A198528 A198529 A198530
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 26 2011
STATUS
approved

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Last modified November 27 11:59 EST 2024. Contains 378151 sequences.
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