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A031099 a(n)=least k such that base 9 representation of n begins at s(k), where s=A031098. 0

%I

%S 7,6,5,4,3,2,1,10,7,131,114,96,78,60,42,24,117,115,6,111,94,76,58,40,

%T 22,99,97,95,5,91,74,56,38,20,81,79,77,75,4,71,54,36,18,63,61,59,57,

%U 55,3,51,34,16,45,43,41,39,37,35,2,31,14,27,25,23

%N a(n)=least k such that base 9 representation of n begins at s(k), where s=A031098.

%K nonn

%O 1,1

%A _Clark Kimberling_

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Last modified February 6 10:18 EST 2023. Contains 360104 sequences. (Running on oeis4.)