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A202649 Number of n X n 0..2 arrays with no row or column sum equal to the previous 1
3, 52, 8460, 14394092, 231197740500 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A202651

LINKS

Table of n, a(n) for n=1..5.

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A337755 A263530 A136723 * A347611 A302932 A143387

Adjacent sequences:  A202646 A202647 A202648 * A202650 A202651 A202652

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 22 2011

STATUS

approved

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Last modified July 5 14:18 EDT 2022. Contains 355099 sequences. (Running on oeis4.)