OFFSET
1,1
COMMENTS
a(n) must clearly be even.
LINKS
Zak Seidov, Table of n, a(n) for n = 1..1050
EXAMPLE
2 is a term as the sum of the squares of the first two primes is 2^2 + 3^2 = 13, which is prime.
MATHEMATICA
Select[Range[1000], PrimeQ[Sum[Prime[i]^2, {i, #}]] &] (* Carl Najafi, Aug 22 2011 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Rick L. Shepherd, Sep 14 2004
STATUS
approved