A070840 Repdigits (A010785) ordered by sum of digits (A007953).

0, 1, 2, 11, 3, 111, 4, 22, 1111, 5, 11111, 6, 33, 222, 111111, 7, 1111111, 8, 44, 2222, 11111111, 9, 333, 111111111, 55, 22222, 1111111111, 11111111111, 66, 444, 3333, 222222, 111111111111, 1111111111111, 77, 2222222, 11111111111111, 555, 33333

Offset

1,3

Comments

If n has no divisors among 2,3,5 or 7 then the only term with digit sum n is the repunit A002275(n) = 1111... n times.

Links

Table of n, a(n) for n=1..39.

Crossrefs

Cf. A070841.

Sequence in context: A073331 A109858 A082266 * A235460 A082264 A070532

Adjacent sequences: A070837 A070838 A070839 * A070841 A070842 A070843

Keyword

base,nonn

Author

Amarnath Murthy, May 12 2002

Extensions

Edited and extended by Ray Chandler, Feb 10 2009

Status

approved