id:A109743 - OEIS Search Results

Search: id:A109743

Displaying 1-1 of 1 results found.

page 1

a(2)=1; for n>2, a(n) = A109742(n)/3.

+0
2

1, 3, 9, 41, 231, 1551, 12037, 105861, 1039539, 11268059, 133585089, 1718984673, 23857531519, 355190381031, 5646040979901, 95432906354621, 1709068974897867, 32325104169244851, 643869687410800249, 13471540400560532889, 295384662114697463319 (list; graph; listen)

	OFFSET	`2,2`
	CROSSREFS	`Cf. A000166, A109742.` `Sequence in context: A012099 A159039 A074502 this_sequence A139150 A113271 A057724` `Adjacent sequences: A109740 A109741 A109742 this_sequence A109744 A109745 A109746`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), based on a suggestion from Douglas Rogers, Aug 13 2005`

page 1

Search completed in 0.002 seconds

Last modified December 20 00:58 EST 2009. Contains 171054 sequences.

AT&T Labs Research