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A198911
Number of nX5 0..7 arrays with values 0..7 introduced in row major order and no element equal to any horizontal or vertical neighbor
2
15, 10867, 54381563, 481871809749, 4717456775959530, 46891073386615240710, 467181941240736711604077, 4656280284540702751242128730, 46410545076265038917843608182171, 462591920649454036671348839366018986
OFFSET
1,1
COMMENTS
Column 5 of A198914
LINKS
EXAMPLE
Some solutions with values 0 to 7 for n=3
..0..1..2..3..2....0..1..2..3..4....0..1..0..2..3....0..1..2..3..4
..1..0..3..2..3....1..0..5..1..6....1..0..3..4..5....1..0..5..2..3
..2..4..5..6..7....0..7..4..3..1....6..4..2..7..0....0..6..3..5..7
CROSSREFS
Sequence in context: A198720 A140285 A208401 * A207867 A206513 A271404
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 31 2011
STATUS
approved