id:A038002 - OEIS Search Results

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Number of connected functions on n points with a single labeled point.

+0
2

0, 1, 3, 9, 27, 81, 242, 722, 2150, 6395, 19003, 56428, 167458, 496724, 1472835, 4365692, 12936998, 38327764, 113529027, 336221554, 995586119, 2947641940, 8726093434, 25829729702, 76450357119, 226257478851 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`G.f.: B(x)(B(x)+1) where B(x) is g.f. of A000107.`
	CROSSREFS	`Cf. A027853.` `Sequence in context: A014953 A080557 A022014 this_sequence A133494 A140429 A141413` `Adjacent sequences: A037999 A038000 A038001 this_sequence A038003 A038004 A038005`
	KEYWORD	`nonn`
	AUTHOR	`Christian G. Bower (bowerc(AT)usa.net)`

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

AT&T Labs Research