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a(n) = least k such that s(k) = n, where s = A026284.
0

%I #4 Mar 30 2012 18:56:05

%S 1,2,3,4,5,7,9,11,13,15,16,18,19,21,22,24,25,27,28,30,32,33,35,37,38,

%T 40,42,43,45,47,48,50,52,53,55,56,58,60,61,63,64,66,68,69,71,72,74,76,

%U 77,79,80,82,84,85,87,88,90,92,93,95,97,98,100

%N a(n) = least k such that s(k) = n, where s = A026284.

%K nonn

%O 1,2

%A _Clark Kimberling_