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a(n) = sum of digits of A061909(n).
3

%I #4 Mar 30 2012 16:50:41

%S 1,2,3,1,2,3,4,2,3,4,3,4,1,2,3,4,2,3,4,5,3,4,5,4,2,3,4,3,4,5,4,5,3,4,

%T 4,5,1,2,3,4,2,3,4,5,3,4,5,4,5,2,3,4,5,3,4,5,6,4,5,6,5,3,4,5,4,5,6,5,

%U 4,5,2,3,4,3,4,5,4,5,6,3,4,5,4,5,5,6,4,5,6,5,6,3,4,4,5,4,5,5,6,1,2,3,4,2,3

%N a(n) = sum of digits of A061909(n).

%H T. D. Noe, <a href="/A129968/b129968.txt">Table of n, a(n) for n=1..5000</a>

%K nonn,base

%O 1,2

%A _N. J. A. Sloane_, Jun 13 2007