Numbers n such that string 6,1 occurs in the base 8 representation of n but not of n+1.

Terms

a(0) =49a(1) =113a(2) =177a(3) =241a(4) =305a(5) =369a(6) =399a(7) =433a(8) =497a(9) =561a(10) =625a(11) =689a(12) =753a(13) =817a(14) =881a(15) =911a(16) =945a(17) =1009a(18) =1073a(19) =1137a(20) =1201a(21) =1265a(22) =1329a(23) =1393a(24) =1423a(25) =1457a(26) =1521a(27) =1585a(28) =1649a(29) =1713