Numbers k such that 15^k + 2 is prime.

Terms

a(0) =0a(1) =1a(2) =2a(3) =4a(4) =5a(5) =10a(6) =11a(7) =16a(8) =20a(9) =52a(10) =75a(11) =106a(12) =112a(13) =132a(14) =371a(15) =3264a(16) =3424a(17) =5477a(18) =7516a(19) =10365a(20) =44557a(21) =150706