id:A073923 - OEIS Search Results

Search: id:A073923

Displaying 1-1 of 1 results found.

page 1

a(1)=1, a(n) is the smallest power of 2 not included earlier such that sum(k=1,n,a(n)) is prime.

+0
4

1, 2, 4, 16, 8, 4096, 32, 16384, 134217728, 256, 33554432, 1073741824, 2147483648, 68719476736, 8192, 262144, 2722258935367507707706996859454145691648, 1152921504606846976, 10889035741470030830827987437816582766592 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`Conjecture: a(n)=A059661(n)-A059661(n-1). - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 07 2007`
	CROSSREFS	`Cf. A059661.` `Sequence in context: A110005 A019540 A109584 this_sequence A153666 A098819 A067846` `Adjacent sequences: A073920 A073921 A073922 this_sequence A073924 A073925 A073926`
	KEYWORD	`nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Aug 19 2002`
	EXTENSIONS	`More terms from Benoit Cloitre (benoit7848c(AT)orange.fr), Aug 27 2002`

page 1

Search completed in 0.002 seconds

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

AT&T Labs Research