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 A232934 Number of n X n 0..2 arrays with no element x(i,j) adjacent to value 2-x(i,j) horizontally, vertically or antidiagonally. 1
 3, 12, 84, 1048, 26644, 1294504, 123516664, 22870954236, 8259047739212, 5804528923256596, 7946219601520287416, 21181791025549725373140, 109959477313325884615593152, 1111595819289260873354274996460 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A232941. LINKS R. H. Hardin, Table of n, a(n) for n = 1..21 EXAMPLE Some solutions for n=5 ..0..0..0..0..1....1..2..2..2..2....2..2..2..2..1....0..1..0..0..0 ..0..1..0..0..0....2..2..2..2..2....1..2..2..2..2....0..0..0..0..0 ..0..0..1..0..0....2..1..2..2..2....2..2..2..2..2....1..0..1..0..0 ..0..0..0..0..1....2..2..1..2..2....1..2..2..2..2....0..0..0..0..0 ..1..0..0..0..0....2..2..2..1..2....2..1..2..1..2....1..0..1..0..0 CROSSREFS Cf. A232941. Sequence in context: A225905 A355322 A070825 * A077047 A074505 A260912 Adjacent sequences: A232931 A232932 A232933 * A232935 A232936 A232937 KEYWORD nonn AUTHOR R. H. Hardin, Dec 02 2013 STATUS approved

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Last modified September 7 05:42 EDT 2024. Contains 375729 sequences. (Running on oeis4.)