A043310 a(n)=A033004(n)/7.

1, 2, 3, 4, 5, 36, 38, 39, 40, 41, 72, 73, 75, 76, 77, 108, 109, 110, 112, 113, 144, 145, 146, 147, 149, 180, 181, 182, 183, 184, 1297, 1298, 1299, 1300, 1301, 1368, 1369, 1371, 1372, 1373, 1404, 1405, 1406, 1408, 1409, 1440, 1441, 1442, 1443, 1445, 1476, 1477

Offset: 1

Author

Clark Kimberling

Keywords

• nonn
• base

Comments

Also: Numbers which, written in base 36, have all digits less than 6 and no two adjacent digits equal. - M. F. Hasler, Feb 03 2014

Crossrefs

Cf. A043307 - A043320, A043291, A033001 - A033014, A033016 - A033029.

Programs

PARI

is_A043310(n)=(n=[n])&&!until(!n[1],((n=divrem(n[1],36))[2]<6 && n[1]%6!=n[2])||return) \\ M. F. Hasler, Feb 03 2014

Extensions

Definition corrected by and more terms from Georg Fischer, Mar 04 2021