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A210141 Number of (n+1)X7 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
77934, 21511540, 5714971168, 1499212226898, 389550973002670, 100540191960863826, 25825997316374317466, 6612514023912830466845, 1689392659558935537327585, 430991542000743763901193762 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A210143

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A321235 A266967 A061528 * A051302 A145553 A016819

Adjacent sequences:  A210138 A210139 A210140 * A210142 A210143 A210144

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 17 2012

STATUS

approved

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Last modified December 2 14:09 EST 2021. Contains 349445 sequences. (Running on oeis4.)