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A205763 Number of (n+1)X4 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
8659, 274013, 9909258, 375857889, 14312320196, 545700470559, 20808476912916, 793486314120669, 30257997968098894, 1153827416366199522, 43998894299268852777, 1677809126003982433476, 63979878224491463514492 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A205768

LINKS

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

EXAMPLE

Some solutions for 5X5

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

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

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

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

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

CROSSREFS

Sequence in context: A205732 A205913 A205905 * A253617 A203737 A214487

Adjacent sequences:  A205760 A205761 A205762 * A205764 A205765 A205766

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 30 2012

STATUS

approved

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Last modified May 31 09:30 EDT 2020. Contains 334748 sequences. (Running on oeis4.)