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A267954 Number of nX4 0..2 arrays with every repeated value in every row and column unequal to the previous repeated value, and new values introduced in row-major sequential order. 1
11, 726, 30145, 1414023, 56103165, 2290723921, 87407239371, 3343976341229, 124140022659137, 4592258225675297, 167435268977631221, 6080341495638232187, 219161395227799839753, 7874818737427465078729, 281806381317852982386447 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A267957.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..162

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Cf. A267957.

Sequence in context: A222653 A204974 A204701 * A206646 A267908 A180740

Adjacent sequences:  A267951 A267952 A267953 * A267955 A267956 A267957

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 22 2016

STATUS

approved

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Last modified July 24 20:26 EDT 2021. Contains 346273 sequences. (Running on oeis4.)