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A210044 Number of (n+1)X(n+1) 0..2 arrays containing all values 0..2 with every 2X2 subblock having two distinct values, and new values 0..2 introduced in row major order 0
0, 119, 20871, 8989701, 11175987745, 42412428208163, 503253512833068071, 18932450647021933023425, 2277047483224817482244026729, 880611215077918756189911925544659 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A210052

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A261686 A069328 A184330 * A020546 A323318 A192726

Adjacent sequences:  A210041 A210042 A210043 * A210045 A210046 A210047

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 16 2012

STATUS

approved

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Last modified October 1 09:13 EDT 2022. Contains 357140 sequences. (Running on oeis4.)