a(n) = 9^n mod n^9.

Terms

a(0) =0a(1) =81a(2) =729a(3) =6561a(4) =59049a(5) =531441a(6) =4782969a(7) =43046721a(8) =0a(9) =486784401a(10) =727739626a(11) =3801397473a(12) =7390478182a(13) =5013665073a(14) =26942641524a(15) =68218142337a(16) =50040016962a(17) =127461340881a(18) =20157955560a(19) =179056928801a(20) =95734214766a(21) =798384194161a(22) =812529625653a(23) =123794634177