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A198525
Number of nX5 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
2
52, 81844, 222590953, 634586561196, 1814002928583853, 5186266567454077293, 14827770532074166305565, 42393290191915767856385826, 121204405622972228787863169567, 346529082914494875185400399625818
OFFSET
1,1
COMMENTS
Column 5 of A198528
LINKS
EXAMPLE
Some solutions for n=4
..0..0..1..2..3....0..1..2..2..0....0..1..0..2..2....0..1..1..2..3
..1..1..0..1..4....1..1..0..3..1....1..1..0..3..0....1..1..0..1..2
..0..0..1..2..2....0..0..1..0..3....0..0..1..0..2....0..0..1..0..4
..0..0..1..0..3....0..0..1..2..1....0..0..1..3..1....0..0..1..3..3
CROSSREFS
Sequence in context: A208785 A206388 A263223 * A208580 A208585 A208464
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 26 2011
STATUS
approved