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A210142 Number of (n+1)X8 0..3 arrays containing all values 0..3 with every 2X2 subblock having one, two or four distinct values, and new values 0..3 introduced in row major order 1
638065, 341220491, 179321691502, 94235638705314, 49393019753138539, 25825997316374317466, 13475932703981552094893, 7020890990431993670518416, 3653843245510021674190564343, 1900120194269804888137156836507 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A210143

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..164

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A185476 A237903 A250674 * A183745 A113951 A257194

Adjacent sequences:  A210139 A210140 A210141 * A210143 A210144 A210145

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 17 2012

STATUS

approved

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Last modified January 22 07:31 EST 2022. Contains 350481 sequences. (Running on oeis4.)