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A205764 Number of (n+1)X5 0..3 arrays with every 2X2 subblock having nonzero determinant and having the same number of clockwise edge increases as its horizontal and vertical neighbors 1
62607, 4570761, 375857889, 31592825608, 2656185934184, 223459321298323, 18792440902201504, 1580709916943096718, 132941278791630619177, 11181607234258635896108, 940424480216599337378896 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A205768

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for 5X5

..2..1..0..1..0....2..2..3..0..2....1..3..3..0..3....3..3..2..1..3

..1..2..1..2..1....0..3..2..2..1....2..2..3..3..3....2..3..3..3..3

..1..0..2..1..0....3..2..0..3..2....0..2..2..3..0....2..2..3..1..3

..0..1..0..3..1....0..3..1..0..3....2..2..3..3..3....2..3..3..3..3

..2..2..1..0..3....1..0..2..1..0....2..3..3..1..3....3..3..0..2..3

CROSSREFS

Sequence in context: A257150 A257157 A254739 * A209207 A224649 A253854

Adjacent sequences:  A205761 A205762 A205763 * A205765 A205766 A205767

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 30 2012

STATUS

approved

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Last modified May 30 15:21 EDT 2020. Contains 334726 sequences. (Running on oeis4.)