Integers k such that A086167(k) and A086168(k) are both prime.

Terms

a(0) =1a(1) =15a(2) =45a(3) =105a(4) =135a(5) =231a(6) =807a(7) =1215a(8) =1329a(9) =1395a(10) =1593a(11) =1911a(12) =2301a(13) =2331a(14) =2493a(15) =3045a(16) =3267a(17) =3417a(18) =3495a(19) =3897a(20) =4029a(21) =4059a(22) =4359a(23) =4377a(24) =4635a(25) =4665a(26) =4731a(27) =5265a(28) =6135a(29) =6315