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A181036 Number of n X n binary matrices with no initial bit string in any row or column divisible by 6 0
1, 2, 6, 108, 2262, 280212, 46080957, 36405166265, 47512264085495, 240784798489897626, 2425732417937080443932 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A181039

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

Some solutions for 4X4

..1..1..1..1....1..1..1..1....1..1..1..1....1..1..1..1....1..1..1..1

..1..0..1..1....1..1..1..0....1..0..0..0....1..0..0..1....1..0..0..0

..1..1..1..1....1..1..1..0....1..0..0..0....1..1..1..1....1..0..1..1

..1..0..0..0....1..0..1..0....1..0..0..1....1..0..0..1....1..0..0..1

CROSSREFS

Sequence in context: A294906 A284262 A287935 * A222854 A059088 A216151

Adjacent sequences:  A181033 A181034 A181035 * A181037 A181038 A181039

KEYWORD

nonn

AUTHOR

R. H. Hardin Sep 30 2010

STATUS

approved

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Last modified July 29 13:28 EDT 2021. Contains 346346 sequences. (Running on oeis4.)