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A230590 Number of nX4 0..5 arrays x(i,j) with each element horizontally or vertically next to at least one element with value (x(i,j)+1) mod 6, and upper left element zero 1
0, 8, 270, 7078, 225010, 7476932, 239885668, 7573457652, 239197756936, 7567375830884, 239482620002238, 7578269700586628, 239803031035245668, 7588268963577159422, 240122303102460570488, 7598397555002280321334 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 4 of A230592

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..93

EXAMPLE

Some solutions for n=3

..0..3..4..3....0..5..2..1....0..3..4..3....0..1..2..1....0..1..0..3

..1..0..5..2....1..2..3..0....1..0..5..2....1..2..3..0....5..2..3..4

..2..3..4..3....0..1..4..5....2..3..4..1....0..5..4..5....4..1..0..5

CROSSREFS

Sequence in context: A299328 A098275 A221606 * A300047 A129424 A274559

Adjacent sequences:  A230587 A230588 A230589 * A230591 A230592 A230593

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 24 2013

STATUS

approved

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Last modified June 25 10:29 EDT 2019. Contains 324351 sequences. (Running on oeis4.)