Squares in lunar arithmetic in base 3 written in base 3.

Terms

a(0) =0a(1) =1a(2) =2a(3) =100a(4) =111a(5) =112a(6) =200a(7) =211a(8) =222a(9) =10000a(10) =10101a(11) =10102a(12) =11100a(13) =11111a(14) =11112a(15) =11200a(16) =11211a(17) =11222a(18) =20000a(19) =20101a(20) =20202a(21) =21100a(22) =21111a(23) =21212a(24) =22200a(25) =22211a(26) =22222a(27) =1000000a(28) =1001001a(29) =1001002