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 A166769 Number of nX5 1..2 arrays containing at least one of each value, and all equal values connected. 0
 8, 90, 712, 4942, 32426, 206392, 1284728, 7855758, 47333834 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Table of n, a(n) for n=1..9. EXAMPLE Some solutions for n=4 ...1.1.1.2.2...1.1.1.2.2...1.1.1.1.1...2.2.2.2.1...1.1.1.2.2...1.1.1.2.2 ...1.1.1.1.2...1.2.2.2.1...1.2.1.1.1...2.2.1.1.1...1.2.1.1.2...1.1.1.1.2 ...1.2.2.2.2...1.1.1.2.1...1.2.1.2.1...2.1.1.1.1...1.2.1.1.2...1.1.1.1.2 ...1.1.1.1.2...1.1.1.1.1...1.2.2.2.2...2.2.2.2.2...1.2.2.2.2...1.1.1.1.1 ------ ...1.1.1.1.2...2.2.2.2.2...1.1.1.1.1...1.1.2.2.2...1.1.1.2.2...1.1.1.1.1 ...2.2.2.1.2...1.1.1.1.2...2.2.2.2.1...1.2.2.2.2...1.1.1.1.2...1.2.1.1.1 ...2.2.2.2.2...2.2.2.2.2...1.1.1.2.1...1.2.2.1.1...1.1.1.2.2...2.2.1.1.2 ...2.2.2.2.2...2.2.2.2.2...1.1.1.1.1...1.1.1.1.1...1.1.1.2.2...2.2.2.2.2 CROSSREFS Sequence in context: A128304 A247728 A056784 * A323960 A187667 A331512 Adjacent sequences: A166766 A166767 A166768 * A166770 A166771 A166772 KEYWORD nonn AUTHOR R. H. Hardin Oct 21 2009 STATUS approved

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Last modified December 10 19:44 EST 2023. Contains 367717 sequences. (Running on oeis4.)