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 A267283 Number of nX(n+4) arrays of permutations of n+4 copies of 0..n-1 with every element equal to or 1 greater than any southwest or northwest neighbors modulo n and the upper left element equal to 0. 0
 1, 462, 13767, 741057, 79348962, 13687472182 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Superdiagonal 4 of A267278. LINKS Table of n, a(n) for n=1..6. EXAMPLE Some solutions for n=3 ..0..0..0..1..2..2..0....0..1..2..0..0..1..2....0..0..1..1..2..2..0 ..0..0..1..1..1..2..0....1..1..2..2..0..1..2....0..1..1..2..2..0..0 ..2..1..1..1..2..2..2....0..1..2..0..0..1..2....1..0..2..1..2..2..1 CROSSREFS Cf. A267278. Sequence in context: A027816 A027823 A194718 * A289349 A023912 A027565 Adjacent sequences: A267280 A267281 A267282 * A267284 A267285 A267286 KEYWORD nonn AUTHOR R. H. Hardin, Jan 12 2016 STATUS approved

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Last modified July 15 09:15 EDT 2024. Contains 374324 sequences. (Running on oeis4.)