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A210010 Number of (n+1)X7 0..2 arrays containing all values 0..2 with every 2X2 subblock having two or three distinct values, and new values 0..2 introduced in row major order 1
640495, 1155440875, 2070471867089, 3709556186877991, 6646136755091102809, 11907389873495805482147, 21333585909890026502784395, 38221801163314869070882625309, 68479161927863057179564432736483 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A210012

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A236996 A250884 A190574 * A179576 A089220 A052243

Adjacent sequences:  A210007 A210008 A210009 * A210011 A210012 A210013

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 16 2012

STATUS

approved

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Last modified October 17 21:17 EDT 2021. Contains 348065 sequences. (Running on oeis4.)