Numbers of form |2^i - 3^j|.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =5a(5) =7a(6) =8a(7) =11a(8) =13a(9) =15a(10) =17a(11) =19a(12) =23a(13) =25a(14) =26a(15) =29a(16) =31a(17) =37a(18) =47a(19) =49a(20) =55a(21) =61a(22) =63a(23) =65a(24) =73a(25) =77a(26) =79a(27) =80a(28) =101a(29) =115