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A235215
Number of (n+1)X(n+1) 0..2 arrays with 2X2 edge jumps all no more than +1 in one of the clockwise or counterclockwise directions or both
1
59, 8029, 6630699, 35761397619, 1222451522196205, 267555894782142697275, 373708297219003416790462043, 3334468644960359597058491153983041, 190004558530774251991615316633649329710105
OFFSET
1,1
COMMENTS
Diagonal of A235223
LINKS
EXAMPLE
Some solutions for n=2
..2..1..1....1..1..0....1..1..0....0..0..1....1..1..1....1..2..1....2..2..2
..2..0..1....1..1..0....1..1..1....1..2..1....1..1..1....1..2..2....0..1..0
..2..1..2....1..2..1....2..0..1....0..0..1....0..2..1....1..2..2....2..1..0
CROSSREFS
Sequence in context: A198509 A258269 A094489 * A178066 A191947 A093403
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 05 2014
STATUS
approved