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A184650 Number of (n+2)X3 0..3 arrays with each 3X3 subblock nonsingular 1
212898, 11826498, 657272274, 36516002466, 2028771948738, 112716440618754, 6262392708237282, 347931154681020162, 19330646430657483138, 1073988006377144941794, 59669511826707277139106 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 1 of A184652

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..200

EXAMPLE

Some solutions for 4X3

..0..0..2....0..0..2....0..0..2....0..0..2....0..0..2....0..0..2....0..0..2

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

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

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

CROSSREFS

Sequence in context: A184383 A234829 A184652 * A172643 A172746 A083639

Adjacent sequences: A184647 A184648 A184649 * A184651 A184652 A184653

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 19 2011

STATUS

approved

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Last modified December 1 04:36 EST 2022. Contains 358454 sequences. (Running on oeis4.)