id:A058165 - OEIS Search Results

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Number of labeled lattices with fixed a fixed bottom and top.

+0
2

1, 1, 3, 19, 213, 3761, 96373, 3377487, 154874569, 8980530625, 641008120761, 55110586506119, 5606337607922197, 664893010179107529, 90785224148218811149, 14119839142088335522351 (list; graph; listen)

	OFFSET	`2,3`
	CROSSREFS	`a(n)=A055512(n)/(n*(n-1))=A058164(n)/(n-1).` `Sequence in context: A049056 A165356 A000275 this_sequence A074707 A135749 A005647` `Adjacent sequences: A058162 A058163 A058164 this_sequence A058166 A058167 A058168`
	KEYWORD	`nonn,hard`
	AUTHOR	`Christian G. Bower (bowerc(AT)usa.net), Nov 15 2000`

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.

AT&T Labs Research