|
| |
|
|
A144487
|
|
Primes of the form 2^n+15.
|
|
3
| |
|
|
17, 19, 23, 31, 47, 79, 271, 1039, 2063, 4111, 32783, 65551, 4194319, 8388623, 67108879, 1073741839, 4294967311, 1099511627791, 4398046511119, 70368744177679, 2305843009213693967, 4722366482869645213711
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,1
|
|
|
LINKS
| Vincenzo Librandi, Table of n, a(n) for n = 1..35
|
|
|
MATHEMATICA
| Select[2^Range[0, 200]+15, PrimeQ] (* From Vladimir Joseph Stephan Orlovsky, Feb 03 2012 *)
|
|
|
PROG
| (PARI) {for(n=0, 72, if(isprime(k=2^n+15), print1(k, ", ")))}
|
|
|
CROSSREFS
| Cf. A057197 (numbers n such that 2^n + 15 is prime). [From Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Dec 11 2008]
Sequence in context: A007635 A140947 A205700 * A108266 A102325 A038711
Adjacent sequences: A144484 A144485 A144486 * A144488 A144489 A144490
|
|
|
KEYWORD
| nonn,changed
|
|
|
AUTHOR
| Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Dec 09 2008
|
|
|
EXTENSIONS
| Edited by Klaus Brockhaus (klaus-brockhaus(AT)t-online.de) and R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Dec 10 2008
Definition simplified by Jon E. Schoenfield (jonscho(AT)hiwaay.net), Jun 17 2010
|
| |
|
|
