Numbers of the form 4k^4 or (kp)^p for prime p > 2 and k = 1, 2, 3, ....

Terms

a(0) =4a(1) =27a(2) =64a(3) =216a(4) =324a(5) =729a(6) =1024a(7) =1728a(8) =2500a(9) =3125a(10) =3375a(11) =5184a(12) =5832a(13) =9261a(14) =9604a(15) =13824a(16) =16384a(17) =19683a(18) =26244a(19) =27000a(20) =35937a(21) =40000a(22) =46656a(23) =58564a(24) =59319a(25) =74088a(26) =82944a(27) =91125a(28) =100000a(29) =110592