Numbers with the property that all pairs of consecutive base-3 digits differ by 1.

Terms

a(0) =1a(1) =2a(2) =3a(3) =5a(4) =7a(5) =10a(6) =16a(7) =21a(8) =23a(9) =30a(10) =32a(11) =48a(12) =50a(13) =64a(14) =70a(15) =91a(16) =97a(17) =145a(18) =151a(19) =192a(20) =194a(21) =210a(22) =212a(23) =273a(24) =275a(25) =291a(26) =293a(27) =435a(28) =437a(29) =453