id:A006241 - OEIS Search Results

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Minimal plane trees with n terminal nodes.
(Formerly M0133)

+0
1

1, 1, 1, 2, 1, 3, 1, 12, 2, 3, 1, 20, 1, 3, 3, 54, 1, 34, 1, 44, 3, 3, 1, 764, 2, 3, 30, 140, 1, 283, 1, 4470, 3, 3, 3, 10416, 1, 3, 3, 10820, 1, 2227, 1, 2060, 62, 3, 1, 958476, 2, 44, 3, 8204, 1, 59154, 3, 316004, 3 (list; graph; listen)

	OFFSET	`1,4`
	REFERENCES	`N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).` `J. S. Lew, Polynomial enumeration of multidimensional lattices, Math. Systems Theory, 12 (1979), 253-270.`
	LINKS	`Index entries for sequences related to trees`
	CROSSREFS	`Cf. A001003.` `Sequence in context: A098570 A122048 A046208 this_sequence A137764 A057082 A096642` `Adjacent sequences: A006238 A006239 A006240 this_sequence A006242 A006243 A006244`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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