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A209828 Number of (n+1)X8 0..2 arrays with every 2X2 subblock having one or two distinct values, and new values 0..2 introduced in row major order 1
181178, 52089776, 15846003427, 4989831357191, 1591829337311006, 510927200467908535, 164459337509857331548, 53009059712073526189009, 17097259777735866249288772, 5516207267048868165666733764 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A209829

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A190380 A235716 A274365 * A133541 A145536 A249959

Adjacent sequences:  A209825 A209826 A209827 * A209829 A209830 A209831

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 13 2012

STATUS

approved

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Last modified October 26 06:55 EDT 2021. Contains 348257 sequences. (Running on oeis4.)