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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
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
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 19 2011
STATUS
approved

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Last modified March 19 04:26 EDT 2024. Contains 370952 sequences. (Running on oeis4.)