Numbers whose base-8 representation has one fewer 0 than 7's.

Terms

a(0) =7a(1) =15a(2) =23a(3) =31a(4) =39a(5) =47a(6) =55a(7) =57a(8) =58a(9) =59a(10) =60a(11) =61a(12) =62a(13) =79a(14) =87a(15) =95a(16) =103a(17) =111a(18) =119a(19) =121a(20) =122a(21) =123a(22) =124a(23) =125a(24) =126a(25) =143a(26) =151a(27) =159a(28) =167a(29) =175