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A230839 Number of nX6 0..3 arrays x(i,j) with each element horizontally, vertically or antidiagonally next to at least one element with value (x(i,j)+1) mod 4, and upper left element zero 1
0, 8974, 10550264, 9617769208, 8988055879558, 8428081775041778, 7899599586975791528, 7404104956669952823022, 6939731658949591906274844, 6504482883205181770088621656, 6096531906604802985735282788524 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 6 of A230840

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..27

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A237164 A250368 A234755 * A339348 A251234 A144126

Adjacent sequences: A230836 A230837 A230838 * A230840 A230841 A230842

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 31 2013

STATUS

approved

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Last modified December 1 08:58 EST 2022. Contains 358467 sequences. (Running on oeis4.)