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A061422 Numbers n such that 2^(n-1) + n is prime. +0
3
1, 3, 7, 237, 1885 (list; graph; listen)
OFFSET

1,2

COMMENT

Next term is thought to be 51381.

LINKS

Kevin Brown, MathPages

CROSSREFS

Cf. A061421.

Equals A100359(n) + 1.

Sequence in context: A105763 A132564 A057619 this_sequence A088097 A064774 A089689

Adjacent sequences: A061419 A061420 A061421 this_sequence A061423 A061424 A061425

KEYWORD

hard,nonn

AUTHOR

Jason Earls (zevi_35711(AT)yahoo.com), May 02 2001

EXTENSIONS

H. Zeisel found the probable prime 1885. - Benoit Cloitre (benoit7848c(AT)orange.fr), Jun 03 2002

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.


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