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A198526
Number of nX6 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
202, 1948672, 26670041125, 371815743708461, 5186266567454077293, 72341858272434900016248, 1009078065869144136137180812, 14075371934477934686865356966591, 196333764385468923490801365319931630
OFFSET
1,1
COMMENTS
Column 6 of A198528
LINKS
EXAMPLE
Some solutions for n=4
..0..0..0..1..2..0....0..0..0..1..1..1....0..0..0..1..0..1....0..0..0..1..0..2
..1..1..0..0..1..1....1..1..0..0..2..2....1..1..0..0..1..1....1..1..0..0..2..3
..0..0..1..0..1..0....0..0..1..0..2..1....0..0..1..0..2..2....0..0..1..0..4..1
..0..0..1..0..2..3....0..0..1..0..1..0....0..0..1..0..0..2....0..0..1..0..0..1
CROSSREFS
Sequence in context: A064100 A159382 A209501 * A198981 A259330 A090486
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 26 2011
STATUS
approved