Numbers k such that 2^k + k^2 + 1 is prime.

Terms

a(0) =0a(1) =6a(2) =12a(3) =18a(4) =162a(5) =192a(6) =216a(7) =420a(8) =1524a(9) =5112a(10) =7404a(11) =24216a(12) =25944a(13) =101832a(14) =346854