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A207286 Number of nX4 0..3 arrays avoiding the pattern z-2 z-1 z in any row or column 1
241, 58081, 12359893, 2663436930, 572065794890, 122968569630173, 26429424077425891, 5680621805739504100, 1220959989610537371341, 262426428942956734097739, 56404478394058146229795829 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A207290

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A206842 A206834 A206896 * A217998 A183891 A120377

Adjacent sequences:  A207283 A207284 A207285 * A207287 A207288 A207289

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 16 2012

STATUS

approved

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Last modified February 28 09:24 EST 2021. Contains 341695 sequences. (Running on oeis4.)