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 A268050 Number of 3Xn 0..n arrays with every repeated value in every row unequal to, and in every column equal to, the previous repeated value, and new values introduced in row-major sequential order. 0
 4, 122, 9054, 1650058, 525124941, 262999737747, 190270786192101, 188077605422375047, 243772201296637313108, 401542086990450371906244 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 3 of A268049. LINKS Table of n, a(n) for n=1..10. EXAMPLE Some solutions for n=5 ..0..0..1..2..1....0..0..1..2..2....0..0..1..1..0....0..0..1..2..2 ..0..0..1..0..3....0..0..1..0..3....0..0..2..0..2....0..0..1..0..1 ..3..4..1..2..4....1..1..0..3..0....1..2..2..3..4....3..4..1..5..3 CROSSREFS Cf. A268049. Sequence in context: A169972 A360664 A080179 * A268006 A144993 A064681 Adjacent sequences: A268047 A268048 A268049 * A268051 A268052 A268053 KEYWORD nonn AUTHOR R. H. Hardin, Jan 25 2016 STATUS approved

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Last modified May 31 17:17 EDT 2023. Contains 363068 sequences. (Running on oeis4.)