%I #4 Mar 30 2012 18:56:23
%S 1,16,2,36,3,56,4,76,5,96,6,17,1,37,10,57,12,77,14,246,16,276,18,306,
%T 20,336,22,366,24,396,9,19,28,39,2,59,32,79,34,546,36,576,38,606,40,
%U 636,42,666,44,696,11,21,31,41,50,61,3,81,54,846
%N Least k such that base 10 representation of n begins at s(k), where s=A031312.
%K nonn
%O 1,2
%A _Clark Kimberling_
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