5^n reduced modulo 3^n.

Terms

a(0) =0a(1) =2a(2) =7a(3) =17a(4) =58a(5) =209a(6) =316a(7) =1580a(8) =3526a(9) =4508a(10) =22540a(11) =112700a(12) =209206a(13) =1046030a(14) =447181a(15) =11801843a(16) =30311401a(17) =108510284a(18) =155130931a(19) =775654655a(20) =391488874a(21) =1957444370a(22) =9787221850a(23) =48936109250a(24) =150537367423a(25) =470257300634a(26) =656709284284