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 A166824 Number of nX4 1..4 arrays containing at least one of each value, all equal values connected, rows considered as a single number in nondecreasing order, and columns considered as a single number in increasing order. 0
 1, 92, 1950, 18821, 117600, 558447 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS EXAMPLE Some solutions for n=3 ...1.1.1.4...1.1.1.2...1.1.4.4...1.1.1.4...1.1.3.4...1.1.2.4...1.1.3.3 ...1.1.4.4...1.1.4.4...1.2.2.4...1.3.4.4...1.2.3.4...1.1.4.4...1.3.3.4 ...1.2.4.3...3.4.4.4...3.2.4.4...3.3.2.4...1.4.4.4...3.4.4.4...2.3.3.4 ------ ...1.1.1.4...1.1.4.4...1.1.3.3...1.1.2.3...1.2.2.4...1.2.2.2...1.1.2.2 ...1.2.4.4...1.2.2.2...1.4.4.4...1.3.3.3...2.2.2.4...2.2.3.4...1.2.2.4 ...3.2.2.4...1.2.2.3...4.4.2.4...1.3.4.3...3.3.4.4...2.3.3.3...1.3.3.3 CROSSREFS Sequence in context: A269623 A265923 A249236 * A248451 A017808 A035741 Adjacent sequences:  A166821 A166822 A166823 * A166825 A166826 A166827 KEYWORD nonn AUTHOR R. H. Hardin Oct 21 2009 STATUS approved

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Last modified July 1 10:54 EDT 2022. Contains 354972 sequences. (Running on oeis4.)