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 A183424 Half the number of n X n 0..2 arrays with no element equal its row sum plus its column sum mod 3 0
 1, 9, 256, 62694, 16777215 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A183429 LINKS EXAMPLE Some solutions for 4X4 ..2..0..0..1....1..0..0..1....0..1..0..0....0..0..2..0....0..0..1..0 ..0..0..1..0....2..1..1..2....0..1..1..2....1..0..1..0....1..0..0..2 ..2..0..2..0....0..0..0..0....0..0..1..0....0..1..1..2....2..0..2..2 ..2..1..2..2....1..1..1..1....0..2..2..1....2..1..0..0....0..1..1..2 CROSSREFS Sequence in context: A025133 A193129 A183493 * A160073 A157575 A072158 Adjacent sequences:  A183421 A183422 A183423 * A183425 A183426 A183427 KEYWORD nonn AUTHOR R. H. Hardin Jan 04 2011 STATUS approved

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Last modified May 21 22:24 EDT 2019. Contains 323467 sequences. (Running on oeis4.)