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 A208351 Number of nX6 0..3 arrays with new values 0..3 introduced in row major order and no element equal to any knight-move neighbor (colorings ignoring permutations of colors) 0
 187, 69988, 1901508, 103672036, 8045978096, 647640659639, 52428246114853 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 6 of A208353 LINKS Table of n, a(n) for n=1..7. EXAMPLE Some solutions for n=4 ..0..1..0..2..1..0....0..0..0..0..0..0....0..0..0..0..1..1....0..0..0..0..1..1 ..1..0..2..2..1..0....1..2..1..1..1..3....2..1..2..2..1..1....1..1..2..2..2..3 ..3..1..0..2..3..3....2..3..3..1..2..3....3..3..3..2..3..3....1..3..3..2..3..3 ..1..0..1..0..3..0....0..2..0..0..2..0....0..0..0..0..0..3....2..3..0..0..0..1 CROSSREFS Sequence in context: A030536 A222911 A143661 * A241333 A223060 A208862 Adjacent sequences: A208348 A208349 A208350 * A208352 A208353 A208354 KEYWORD nonn AUTHOR R. H. Hardin Feb 25 2012 STATUS approved

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Last modified May 29 21:17 EDT 2023. Contains 363042 sequences. (Running on oeis4.)