OFFSET
1,1
COMMENTS
Original idea from G. L. Honaker, Jr.
LINKS
Peter Rowlett, Table of n, a(n) for n = 1..8668
EXAMPLE
Prime 113 has emirp 311 and 11311 is a palindromic prime.
PROG
(Python)
from sympy import isprime
for i in range(2, 10**7):
if isprime(i):
emirp = int(str(i)[-1::-1])
if isprime(emirp):
primemirp = int(str(i)+str(emirp)[1:])
if isprime(primemirp):
print(primemirp)
# Peter Rowlett, Nov 16 2023
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Patrick De Geest, Feb 15 2000
EXTENSIONS
a(33)-a(35) from Peter Rowlett, Nov 16 2023
STATUS
approved