OFFSET
1,1
COMMENTS
REFERENCES
R. E. Dressler and S. T. Parker, Primes with a prime subscript, J. ACM, 22 (1975), 380-381.
EXAMPLE
Prime(Prime(1)) + Prime(Prime(2)) + Prime(Prime(3)) = Prime(2) + Prime(3) + Prime(5) = 3 + 5 + 11 = 19 is a member.
CROSSREFS
KEYWORD
nonn
AUTHOR
Jonathan Sondow, Jul 10 2012
STATUS
approved