Seventh powers: a(n) = n^7.

Terms

a(0) =0a(1) =1a(2) =128a(3) =2187a(4) =16384a(5) =78125a(6) =279936a(7) =823543a(8) =2097152a(9) =4782969a(10) =10000000a(11) =19487171a(12) =35831808a(13) =62748517a(14) =105413504a(15) =170859375a(16) =268435456a(17) =410338673a(18) =612220032a(19) =893871739a(20) =1280000000a(21) =1801088541a(22) =2494357888a(23) =3404825447a(24) =4586471424a(25) =6103515625a(26) =8031810176