a(n) is the smallest m > 1 such that m divides Sum_{k=1..m} prime(k)^n.

Terms

a(0) =23a(1) =19a(2) =25a(3) =2951a(4) =25a(5) =4357a(6) =25a(7) =43a(8) =281525a(9) =269a(10) =25a(11) =37a(12) =23a(13) =295a(14) =17a(15) =3131a(16) =395191a(17) =37a(18) =25a(19) =19a(20) =139a(21) =1981a(22) =23a(23) =37a(24) =25a(25) =455a(26) =25a(27) =41a(28) =124403a(29) =61