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 A265880 Number of nX3 arrays containing 3 copies of 0..n-1 with no element plus any horizontal neighbor equal to n-1. 0
 0, 2, 152, 30488, 18437120, 13734486480, 21429982230720, 40229528835726720, 131323790370474455040 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Column 3 of A265882. LINKS Table of n, a(n) for n=1..9. EXAMPLE Some solutions for n=4 ..3..1..3....3..1..1....2..0..2....3..1..3....3..1..0....1..3..1....3..2..0 ..2..0..0....1..3..2....1..1..3....0..1..1....1..3..1....2..2..3....1..1..3 ..3..1..1....2..0..0....0..0..2....3..2..0....0..2..3....0..1..0....0..0..2 ..0..2..2....0..2..3....3..3..1....0..2..2....2..2..0....0..2..3....1..3..2 CROSSREFS Cf. A265882. Sequence in context: A113576 A102458 A206309 * A064436 A012605 A012602 Adjacent sequences: A265877 A265878 A265879 * A265881 A265882 A265883 KEYWORD nonn AUTHOR R. H. Hardin, Dec 17 2015 STATUS approved

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Last modified August 15 07:32 EDT 2024. Contains 375173 sequences. (Running on oeis4.)