Positive numbers having the same set of digits in base 3 and base 9.

Terms

a(0) =1a(1) =2a(2) =9a(3) =18a(4) =81a(5) =82a(6) =83a(7) =90a(8) =99a(9) =162a(10) =163a(11) =164a(12) =171a(13) =180a(14) =729a(15) =730a(16) =731a(17) =738a(18) =739a(19) =740a(20) =747a(21) =748a(22) =749a(23) =810a(24) =811a(25) =812a(26) =819a(27) =828a(28) =891a(29) =892