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 A266881 Number of 5Xn arrays containing n copies of 0..5-1 with no element 1 greater than its north, southwest or northwest neighbor modulo 5 and the upper left element equal to 0. 0
 9, 351, 33529, 4555903, 763867475, 138332628493, 25681615835531, 4850980527140722 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 5 of A266878. LINKS Table of n, a(n) for n=1..8. EXAMPLE Some solutions for n=3 ..0..1..2....0..1..3....0..1..4....0..3..3....0..2..2....0..0..1....0..1..0 ..2..4..0....2..4..1....4..4..1....3..0..2....4..4..0....2..3..4....3..3..4 ..4..1..3....0..4..1....1..3..3....0..2..2....4..1..3....1..1..2....1..2..2 ..2..1..3....0..3..4....0..0..2....4..4..1....2..3..3....4..0..4....4..0..1 ..4..0..3....3..2..2....3..2..2....1..4..1....0..1..1....3..2..3....2..3..4 CROSSREFS Cf. A266878. Sequence in context: A225328 A203745 A012812 * A119756 A222697 A063068 Adjacent sequences: A266878 A266879 A266880 * A266882 A266883 A266884 KEYWORD nonn AUTHOR R. H. Hardin, Jan 05 2016 STATUS approved

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Last modified July 17 11:42 EDT 2024. Contains 374377 sequences. (Running on oeis4.)