Numbers k such that A109217(k) is prime.

Terms

a(0) =3a(1) =23a(2) =28a(3) =34a(4) =47a(5) =86a(6) =92a(7) =107a(8) =632a(9) =723a(10) =754a(11) =772a(12) =9976a(13) =21116