id:A000163 - OEIS Search Results

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Series-parallel numbers.
(Formerly M1852 N0732)

+0
1

2, 8, 34, 136, 538, 2080, 7970, 30224, 113874 (list; graph; listen)

	OFFSET	`2,1`
	REFERENCES	`J. Riordan, An Introduction to Combinatorial Analysis, Wiley, 1958, p. 142.`
	CROSSREFS	`Adjacent sequences: A000160 A000161 A000162 this_sequence A000164 A000165 A000166` `Sequence in context: A005040 A026577 A111643 this_sequence A117616 A014445 A113440`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified July 4 09:27 EDT 2009. Contains 160562 sequences.