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%I #12 Mar 04 2017 06:27:01
%S 1,2,4,5,7,8,10,11,13,17,19,23,28,32,37,38,40,41,43,47,49,53,58,62,67,
%T 68,70,71,73,77,79,83,88,92,97,101,103,107,109,113,118,122,127,131,
%U 136,140,142,146,151,155,160,164
%N a(n) = A016052(n)/3.
%C a(1) = 1; for n >= 1, a(n+1) = a(n) + sum of its digits.
%H Reinhard Zumkeller, <a href="/A230286/b230286.txt">Table of n, a(n) for n = 1..10000</a>
%H <a href="/index/Coi#Colombian">Index entries for Colombian or self numbers and related sequences</a>
%o (Haskell)
%o a230286 = (flip div 3) . a016052
%Y Cf. A004207, A016052, A230287 (first differences).
%K nonn,base
%O 1,2
%A _Reinhard Zumkeller_ and _N. J. A. Sloane_, Oct 16 2013
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