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A206841 Number of 3 X n 0..3 arrays avoiding the pattern z-2 z-1 z in any row, column, nw-to-se diagonal or ne-to-sw antidiagonal. 1
62, 3844, 205518, 11091161, 598618182, 32326073197, 1745398353572, 94242149338308, 5088562764245208, 274755325893611168, 14835328260073233210, 801029018974028227334, 43251318116995342267638, 2335341775687363077659074 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 3 of A206838.
LINKS
EXAMPLE
Some solutions for n=5
..2..0..3..2..0....0..0..2..2..3....0..3..1..3..0....3..1..3..1..3
..0..2..1..0..1....0..1..0..1..3....1..2..0..1..1....1..3..1..3..0
..3..0..1..3..0....3..1..3..0..2....0..1..0..3..0....3..3..1..2..1
CROSSREFS
Cf. A206838.
Sequence in context: A137219 A065991 A206833 * A206895 A207285 A042861
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 13 2012
STATUS
approved

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Last modified February 28 04:16 EST 2024. Contains 370379 sequences. (Running on oeis4.)