A166808 - OEIS

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A166808

Number of nX5 1..2 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 nondecreasing order.

4, 19, 54, 124, 250, 460, 790, 1285 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	EXAMPLE	`Some solutions for n=4` `...1.1.1.1.1...1.1.1.1.1...1.1.1.1.1...1.1.1.1.1...1.1.1.1.2...1.1.1.1.2` `...1.1.1.1.1...1.1.1.1.1...1.1.1.1.2...1.1.1.2.2...1.1.1.2.2...1.1.1.1.2` `...1.1.2.2.2...1.1.1.2.2...1.1.1.2.2...2.2.2.2.2...1.1.2.2.2...1.1.1.2.2` `...1.1.2.2.2...2.2.2.2.2...1.1.2.2.2...2.2.2.2.2...1.1.2.2.2...1.1.1.2.2` `------` `...1.1.1.1.1...1.1.1.1.2...1.1.1.2.2...1.1.1.2.2...1.2.2.2.2...1.1.1.2.2` `...1.1.1.2.2...1.1.1.1.2...1.1.2.2.2...2.2.2.2.2...1.2.2.2.2...1.1.1.2.2` `...1.1.1.2.2...2.2.2.2.2...1.1.2.2.2...2.2.2.2.2...2.2.2.2.2...2.2.2.2.2` `...2.2.2.2.2...2.2.2.2.2...1.1.2.2.2...2.2.2.2.2...2.2.2.2.2...2.2.2.2.2`
	CROSSREFS	`Sequence in context: A138617 A171354 A159833 * A186310 A122684 A122681` `Adjacent sequences: A166805 A166806 A166807 * A166809 A166810 A166811`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net) Oct 21 2009`

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Last modified February 16 09:50 EST 2012. Contains 205904 sequences.