Floor[ prime(n)^{prime(n)/n}], prime(n) = A000040(n).

Terms

a(0) =4a(1) =5a(2) =14a(3) =30a(4) =195a(5) =259a(6) =973a(7) =1089a(8) =3019a(9) =17416a(10) =15956a(11) =68436a(12) =122031a(13) =104011a(14) =173476a(15) =514829a(16) =1399259a(17) =1122753a(18) =2749896a(19) =3732219a(20) =3000994a(21) =6519381a(22) =8421098a(23) =16942907a(24) =51129827a(25) =61096684a(26) =47709104a(27) =56904308a(28) =45489733a(29) =54108081