a(n) = 3^n mod n^3.

Terms

a(0) =0a(1) =1a(2) =0a(3) =17a(4) =118a(5) =81a(6) =129a(7) =417a(8) =0a(9) =49a(10) =124a(11) =945a(12) =1498a(13) =177a(14) =1782a(15) =1857a(16) =1958a(17) =729a(18) =3917a(19) =401a(20) =7398a(21) =8721a(22) =6466a(23) =4833a(24) =68a(25) =14049a(26) =0a(27) =3889a(28) =9718a(29) =26649