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 A209040 Number of n X n 0..3 arrays with no element equal the average of immediate neighbors vertically above and horizontally left of it 1
 4, 124, 47700, 225262148, 13034933066892, 9239962457023110368, 80235179157233210417254036, 8534774056580607728132307076396612, 11121202754126311568095965858257048619933492 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A209047 LINKS R. H. Hardin, Table of n, a(n) for n = 1..10 EXAMPLE Some solutions for n=4 ..3..1..2..3....3..2..3..1....2..3..1..0....1..0..2..1....3..1..2..1 ..0..1..0..0....1..2..2..0....3..2..2..0....0..1..0..2....0..3..3..1 ..1..0..3..0....2..3..1..3....2..3..3..0....2..1..0..3....3..1..3..3 ..2..2..2..0....1..0..3..0....1..3..0..2....1..0..1..0....0..1..1..1 CROSSREFS Sequence in context: A090082 A243010 A343427 * A068891 A337245 A073351 Adjacent sequences: A209037 A209038 A209039 * A209041 A209042 A209043 KEYWORD nonn AUTHOR R. H. Hardin Mar 04 2012 STATUS approved

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Last modified August 15 19:07 EDT 2024. Contains 375173 sequences. (Running on oeis4.)