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A183593 1/24 the number of (n+1)X9 0..3 arrays with every 2X2 subblock containing exactly three distinct values 0
36013568, 142681644568, 552606468835138, 2147583158143435461, 8342194020938064158034, 32407200636226196823851489 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 8 of A183594

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

Some solutions with a(1,1)=0 for 3X9

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

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

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

CROSSREFS

Sequence in context: A258955 A037252 A064586 * A183755 A105296 A254389

Adjacent sequences:  A183590 A183591 A183592 * A183594 A183595 A183596

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 05 2011

STATUS

approved

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Last modified May 17 19:39 EDT 2021. Contains 343988 sequences. (Running on oeis4.)