n written in fractional base 3/2.

Terms

a(0) =0a(1) =1a(2) =2a(3) =20a(4) =21a(5) =22a(6) =210a(7) =211a(8) =212a(9) =2100a(10) =2101a(11) =2102a(12) =2120a(13) =2121a(14) =2122a(15) =21010a(16) =21011a(17) =21012a(18) =21200a(19) =21201a(20) =21202a(21) =21220a(22) =21221a(23) =21222a(24) =210110a(25) =210111a(26) =210112a(27) =212000a(28) =212001a(29) =212002