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A206842 Number of 4Xn 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
241, 58081, 11086238, 2152805235, 418964575189, 81562078260316, 15877946803718090, 3091067307303254867, 601761995188912369335, 117150369608909238252579, 22806723149404940748682374 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 4 of A206838
LINKS
EXAMPLE
Some solutions for n=5
..0..1..3..3..2....2..3..0..3..0....0..1..0..2..1....1..3..3..3..3
..0..1..3..2..3....1..3..0..1..1....0..0..1..1..0....2..1..3..1..1
..3..2..1..2..0....1..0..3..1..0....2..2..0..0..1....0..1..3..3..1
..0..0..0..0..0....0..1..3..2..0....1..1..2..0..0....2..1..1..3..1
CROSSREFS
Sequence in context: A119728 A133327 A001361 * A206834 A206896 A207286
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 13 2012
STATUS
approved

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Last modified June 13 16:27 EDT 2024. Contains 373389 sequences. (Running on oeis4.)