n^n mod 3^n.

Terms

a(0) =0a(1) =1a(2) =4a(3) =0a(4) =13a(5) =209a(6) =0a(7) =1231a(8) =739a(9) =0a(10) =51850a(11) =129587a(12) =0a(13) =657067a(14) =868120a(15) =0a(16) =8400886a(17) =91426058a(18) =0a(19) =859535812a(20) =1483912651a(21) =0a(22) =30374372956a(23) =68688648677a(24) =0a(25) =422259655777a(27) =0a(30) =0a(33) =0