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 A207195 Number of n X n 0..2 arrays avoiding the pattern z-1 z-1 z in any row or column. 0
 3, 81, 12534, 12539372, 82169395789, 3560964505762489, 1025697542018363494742, 1959801984026721315634303343 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A207201. LINKS EXAMPLE Some solutions for n=4 ..0..2..2..2....0..2..0..2....1..0..2..0....0..2..2..0....2..2..2..1 ..1..1..0..2....2..2..0..2....1..0..0..0....1..0..0..0....2..1..0..2 ..2..0..1..0....2..0..2..2....0..2..0..0....2..2..1..2....2..0..0..2 ..1..2..0..2....0..2..1..0....2..0..0..0....0..0..2..0....1..0..2..2 CROSSREFS Cf. A207201. Sequence in context: A206726 A207352 A207983 * A207215 A355071 A207544 Adjacent sequences: A207192 A207193 A207194 * A207196 A207197 A207198 KEYWORD nonn AUTHOR R. H. Hardin, Feb 15 2012 STATUS approved

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Last modified February 3 11:40 EST 2023. Contains 360034 sequences. (Running on oeis4.)