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A206314
Number of (n+1)X5 0..3 arrays with the number of clockwise edge increases in every 2X2 subblock equal to two, and every 2X2 determinant nonzero
1
53463, 4466450, 375274347, 31585648103, 2656145209648, 223458785606871, 18792437854613234, 1580709874695673480, 132941278551460873763, 11181607230811497171290, 940424480197031998954820
OFFSET
1,1
COMMENTS
Column 4 of A206318
LINKS
EXAMPLE
Some solutions for n=4
..3..2..2..1..1....0..1..2..2..1....1..1..0..3..2....1..2..2..1..0
..2..1..0..3..2....1..0..1..3..2....3..2..1..0..3....1..0..3..2..1
..3..2..1..0..3....0..1..0..1..3....1..3..2..1..0....2..1..0..3..2
..2..3..2..1..0....1..2..1..2..0....3..2..3..2..1....0..3..2..0..3
..2..0..3..2..1....2..3..2..1..2....2..0..1..3..2....1..0..3..1..0
CROSSREFS
Sequence in context: A164519 A237180 A186199 * A237373 A251369 A252035
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 06 2012
STATUS
approved