id:A074776 - OEIS Search Results

Search: id:A074776

Displaying 1-1 of 1 results found.

page 1

Numbers n such that 2^n-1 and F(n) are not relatively prime, where F(n) denotes the n-th Fibonacci number.

+0
4

4, 8, 10, 11, 12, 16, 18, 20, 22, 24, 28, 30, 32, 33, 36, 40, 44, 48, 50, 52, 54, 55, 56, 58, 60, 64, 66, 68, 70, 72, 76, 77, 78, 80, 84, 88, 90, 92, 96, 99, 100, 104, 108, 110, 112, 116, 120, 121, 124, 126, 128, 130, 132, 136, 138, 140, 143, 144, 148, 150, 152, 154 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`a(n) seems to be asymptotic to c*n with c=2.2...`
	CROSSREFS	`Cf. A080050, A079506.` `Sequence in context: A076703 A141220 A108806 this_sequence A153762 A155878 A029886` `Adjacent sequences: A074773 A074774 A074775 this_sequence A074777 A074778 A074779`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Sep 07 2002`

page 1

Search completed in 0.002 seconds

Last modified December 20 16:54 EST 2009. Contains 171081 sequences.

AT&T Labs Research