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A265444
Number of nX5 0..n+5-2 arrays with upper left zero and lower right n+5-2 and each element differing from its horizontal and vertical neighbors by one or two.
1
9, 455, 25069, 744805, 41855199, 4188662714, 268477963202, 11139856018641, 436718915555930, 28503014136448930, 2155806263833599027, 126581200884579064364, 5999724385865167170433, 301744936468780559629407
OFFSET
1,1
COMMENTS
Column 5 of A265447.
LINKS
EXAMPLE
Some solutions for n=3
..0..1..0..1..2....0..2..3..1..3....0..1..3..2..3....0..1..2..4..3
..2..3..2..3..4....2..3..1..3..4....1..3..1..3..5....1..2..4..3..4
..0..1..3..4..6....3..1..3..4..6....2..4..2..4..6....3..4..3..5..6
CROSSREFS
Cf. A265447.
Sequence in context: A156086 A160478 A020263 * A372634 A285371 A061175
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 09 2015
STATUS
approved