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A184661 Number of (n+2)X4 0..3 arrays with each 3X3 subblock singular 1
1352770, 119805310, 10047874534, 564143008386, 42151760266070, 3068818942252922, 213876509386388262, 15511761707358612866, 1118945141084512520558, 80408360347124360370778 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A184663

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..45

EXAMPLE

Some solutions for 5X4

..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0

..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0

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

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

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

CROSSREFS

Sequence in context: A206254 A157854 A234727 * A187961 A120609 A094914

Adjacent sequences: A184658 A184659 A184660 * A184662 A184663 A184664

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 19 2011

STATUS

approved

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Last modified January 30 02:40 EST 2023. Contains 359939 sequences. (Running on oeis4.)