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 A207529 Number of n X n 0..3 arrays avoiding the patterns z z+1 z or z z-1 z in any row or column 0
 4, 256, 147006, 1066263778, 89061782573052, 87012971830189045874 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A207535 LINKS EXAMPLE Some solutions for n=4 ..0..0..1..2....1..0..0..0....3..2..2..1....3..1..1..1....1..3..2..1 ..0..3..3..0....0..3..1..2....1..2..2..0....3..3..3..1....1..2..2..1 ..1..0..2..2....2..0..1..3....1..3..1..3....3..1..3..3....0..2..0..3 ..1..1..0..0....1..3..3..1....1..0..3..3....3..1..1..1....0..0..2..1 CROSSREFS Sequence in context: A207275 A207473 A223658 * A206968 A206789 A206961 Adjacent sequences:  A207526 A207527 A207528 * A207530 A207531 A207532 KEYWORD nonn AUTHOR R. H. Hardin Feb 18 2012 STATUS approved

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Last modified May 21 17:51 EDT 2022. Contains 353921 sequences. (Running on oeis4.)