Prime powers such that 1 + lcm(1,2,...,p^w) is prime.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =7a(6) =9a(7) =19a(8) =25a(9) =31a(10) =47a(11) =89a(12) =127a(13) =139a(14) =1369a(15) =2251a(16) =3271a(17) =4253a(18) =4373a(19) =4549a(20) =5449a(21) =13331a(22) =37123a(23) =55291a(24) =79633a(25) =105653