OFFSET
1,1
FORMULA
If a prime p = abcdef... (each letter being a single digit) then sum = a^5+b^5+... belongs to this sequence if sum is a prime.
EXAMPLE
a(5) = 227 since 2^5+2^5+7^5 = 32+32+16807 = 16871 is a prime.
MATHEMATICA
Select[Prime[Range[500]], PrimeQ[Total[IntegerDigits[#]^5]]&] (* Harvey P. Dale, May 25 2011 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Carmine Suriano, Sep 02 2010
STATUS
approved