a(n) = A007916(n)^4.

Terms

a(0) =16a(1) =81a(2) =625a(3) =1296a(4) =2401a(5) =10000a(6) =14641a(7) =20736a(8) =28561a(9) =38416a(10) =50625a(11) =83521a(12) =104976a(13) =130321a(14) =160000a(15) =194481a(16) =234256a(17) =279841a(18) =331776a(19) =456976a(20) =614656a(21) =707281a(22) =810000a(23) =923521a(24) =1185921a(25) =1336336a(26) =1500625a(27) =1874161a(28) =2085136a(29) =2313441