login
a(n)=least k such that base 10 representation of n begins at s(k), where s=A031310.
0

%I #4 Mar 30 2012 18:56:23

%S 8,7,6,5,4,3,2,1,11,8,166,147,127,107,87,67,47,27,150,148,7,144,125,

%T 105,85,65,45,25,130,128,126,6,122,103,83,63,43,23,110,108,106,104,5,

%U 100,81,61,41,21,90,88,86,84,82,4,78,59,39,19,70,68

%N a(n)=least k such that base 10 representation of n begins at s(k), where s=A031310.

%K nonn

%O 1,1

%A _Clark Kimberling_