Every base 3 digit of n is a base 10 digit of n.

Terms

a(0) =1a(1) =2a(2) =10a(3) =13a(4) =20a(5) =26a(6) =102a(7) =108a(8) =109a(9) =120a(10) =121a(11) =122a(12) =124a(13) =125a(14) =152a(15) =201a(16) =210a(17) =211a(18) =212a(19) =214a(20) =215a(21) =240a(22) =241a(23) =242a(24) =702a(25) =720a(26) =728a(27) =810a(28) =1000a(29) =1002