The least number k > 1 such that (p+1)^k - p^k is prime, p = n-th prime.

Terms

a(0) =2a(1) =2a(2) =2a(3) =7a(4) =2a(5) =3a(6) =3a(7) =5a(8) =2a(9) =2a(10) =5a(11) =3a(12) =2a(13) =37a(14) =58543a(15) =2a(16) =4663a(17) =17a(18) =3a(19) =61a(20) =23a(21) =7a(22) =2a(23) =2a(24) =7a(25) =5a(26) =7a(27) =59a(28) =5a(29) =2