|
|
A034924
|
|
Numbers k such that 47^k-46 is prime.
|
|
0
|
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
Related to hyperperfect numbers of a certain form.
|
|
LINKS
|
|
|
MATHEMATICA
|
|
|
PROG
|
(Python)
from sympy import isprime
def afind(limit, startat=1):
pow47 = 47**startat
for k in range(startat, limit+1):
if isprime(pow47 - 46): print(k, end=", ")
pow47 *= 47
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,more
|
|
AUTHOR
|
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|