A060353 - OEIS

A060353

Primes of the form n*3^n - 1.

2, 17, 4373, 590489, 6973568801, 486306618362277152039, 407695153504015050412733, 9266726751303003316378520780678994459797093, 23560801709989209203195024431348154965368236005496270061701

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Harry J. Smith, Table of n, a(n) for n = 1..11

PROG

(PARI) { allocatemem(932245000); n=0; for (m=1, 1172, a=m*3^m - 1; if (isprime(a), write("b060353.txt", n++, " ", a)); ) } \\ Harry J. Smith, Jul 04 2009

CROSSREFS

Cf. A060352.

Sequence in context: A221207 A274015 A279884 * A002814 A122207 A174305

Adjacent sequences: A060350 A060351 A060352 * A060354 A060355 A060356

KEYWORD

nonn

AUTHOR

Jason Earls, Mar 31 2001

EXTENSIONS

More terms from William Rex Marshall, Apr 01 2001

STATUS

approved