Numbers k such that 0 and 3 occur juxtaposed in the base-8 representation of k but not of k-1.

Terms

a(0) =24a(1) =67a(2) =88a(3) =131a(4) =152a(5) =192a(6) =216a(7) =259a(8) =280a(9) =323a(10) =344a(11) =387a(12) =408a(13) =451a(14) =472a(15) =515a(16) =536a(17) =579a(18) =600a(19) =643a(20) =664a(21) =704a(22) =728a(23) =771a(24) =792a(25) =835a(26) =856a(27) =899a(28) =920a(29) =963