Numbers with the property that all pairs of consecutive base-6 digits differ by 1.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =6a(6) =8a(7) =13a(8) =15a(9) =20a(10) =22a(11) =27a(12) =29a(13) =34a(14) =37a(15) =49a(16) =51a(17) =78a(18) =80a(19) =92a(20) =94a(21) =121a(22) =123a(23) =135a(24) =137a(25) =164a(26) =166a(27) =178a(28) =207a(29) =209