Primes in lunar arithmetic in base 3 written in base 3.

Terms

a(0) =12a(1) =20a(2) =21a(3) =22a(4) =102a(5) =201a(6) =202a(7) =212a(8) =1002a(9) =1012a(10) =1021a(11) =1022a(12) =1102a(13) =1201a(14) =1202a(15) =2001a(16) =2002a(17) =2011a(18) =2012a(19) =2021a(20) =2022a(21) =2101a(22) =2102a(23) =2112a(24) =2122a(25) =2201a(26) =2202a(27) =2212a(28) =10002a(29) =10012