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A070840 Repdigits (A010785) ordered by sum of digits (A007953). 1

%I #5 Dec 05 2013 19:55:19

%S 0,1,2,11,3,111,4,22,1111,5,11111,6,33,222,111111,7,1111111,8,44,2222,

%T 11111111,9,333,111111111,55,22222,1111111111,11111111111,66,444,3333,

%U 222222,111111111111,1111111111111,77,2222222,11111111111111,555,33333

%N Repdigits (A010785) ordered by sum of digits (A007953).

%C 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.

%Y Cf. A070841.

%K base,nonn

%O 1,3

%A _Amarnath Murthy_, May 12 2002

%E Edited and extended by _Ray Chandler_, Feb 10 2009

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Last modified August 18 20:17 EDT 2024. Contains 375274 sequences. (Running on oeis4.)