OFFSET
1,1
COMMENTS
Also equal to primes p such that 11*p-7 is a perfect square.
LINKS
Chai Wah Wu, Table of n, a(n) for n = 1..1000
PROG
(Python)
import sympy
[(k**2+7)/11 for k in range(10**6) if sympy.ntheory.isprime((k**2+7)/11) & ((k**2+7)/11).is_integer()]
CROSSREFS
KEYWORD
nonn
AUTHOR
Chai Wah Wu, Jul 10 2014
STATUS
approved