Fourth powers m^4 none of whose digits are present in their corresponding roots m.

Terms

a(0) =16a(1) =81a(2) =256a(3) =2401a(4) =4096a(5) =6561a(6) =331776a(7) =531441a(8) =614656a(9) =1048576a(10) =1185921a(11) =3111696a(12) =7311616a(13) =7890481a(14) =11316496a(15) =12117361a(16) =20151121a(17) =35153041a(18) =59969536a(19) =62742241a(20) =74805201a(21) =1664966416a(22) =1698181681a(23) =4430766096a(24) =6505390336a(25) =8428892481