OFFSET
1,1
EXAMPLE
23 is a term because 3^3 + 3*(-1) + (-1)^(-1) = 23 is prime.
31 is a term because 3^3 + 3*1 + 1^1 = 31 is prime.
37 is a term because 3^3 + 3*2 + 2^2 = 37 is prime.
CROSSREFS
KEYWORD
nonn
AUTHOR
Altug Alkan, Jan 08 2016
STATUS
approved