The terms of A055235 (sums of two powers of 3) divided by 2.

Terms

a(0) =1a(1) =2a(2) =3a(3) =5a(4) =6a(5) =9a(6) =14a(7) =15a(8) =18a(9) =27a(10) =41a(11) =42a(12) =45a(13) =54a(14) =81a(15) =122a(16) =123a(17) =126a(18) =135a(19) =162a(20) =243a(21) =365a(22) =366a(23) =369a(24) =378a(25) =405a(26) =486a(27) =729a(28) =1094a(29) =1095