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%I #4 Mar 30 2012 18:56:19
%S 1,2,3,4,5,6,7,9,1,13,15,17,19,21,12,25,2,29,31,33,35,14,28,41,3,45,
%T 47,49,16,30,44,57,4,61,63,18,32,46,60,73,5,77,6,20,34,48,62,76,91,7,
%U 97,100,103,106,109,96,9,10,121,124,127,130,133,11
%N a(n)=least k such that base 7 representation of n begins at s(k), where s=A030998.
%K nonn
%O 1,2
%A _Clark Kimberling_
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