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A199355 Number of nX6 0..3 arrays with values 0..3 introduced in row major order, the number of instances of each value within one of each other, and every element equal to zero or one horizontal or vertical neighbors 0
45, 9175, 36379420, 6518500460, 32990481786550 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A199356

LINKS

Table of n, a(n) for n=1..5.

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A178632 A134229 A209275 * A290819 A163035 A184136

Adjacent sequences:  A199352 A199353 A199354 * A199356 A199357 A199358

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 05 2011

STATUS

approved

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Last modified November 28 10:05 EST 2021. Contains 349401 sequences. (Running on oeis4.)