|
|
A127962
|
|
Binary expansion of A000979(n).
|
|
8
|
|
|
|
OFFSET
|
1,1
|
|
LINKS
|
Table of n, a(n) for n=1..9.
|
|
PROG
|
(Python)
from gmpy2 import divexact
from sympy import prime, isprime
A127962 = [int(bin(p)[2:]) for p in (divexact(2**prime(n)+1, 3) for n in range(2, 10**2)) if isprime(p)] # Chai Wah Wu, Sep 04 2014
|
|
CROSSREFS
|
Cf. A127961, A000979, A000978, A124400, A126614, A127955, A127956, A127957, A127958, A127936.
Sequence in context: A152577 A163449 A127961 * A015511 A065050 A099440
Adjacent sequences: A127959 A127960 A127961 * A127963 A127964 A127965
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Artur Jasinski, Feb 09 2007
|
|
EXTENSIONS
|
Edited by N. J. A. Sloane, Jun 11 2007
|
|
STATUS
|
approved
|
|
|
|