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%I #11 Sep 24 2018 16:53:14
%S 1,1,3,10,2,10,5,3,11,13,2,5,20,4,3,24,19,5,17,19,35,25,53,67,60,61,
%T 33,74,18,109,17,30,117,96,66,14,57,62,97,80,25,81,38,112,143,152,2,
%U 92,122,113,129,93,20,159,138,187,26,57,35,105,158,9,50,58,198,185,182,42,17
%N Position of substring A032740(n) within the decimal expansion of 2^A032740(n).
%C A032740 includes numbers n that are a substring of 2^n.
%H David W. Wilson, <a href="/A124692/b124692.txt">Table of n, a(n) for n = 1..10000</a>
%e A032740(1) = 6 is a substring of 64 = 2^6 starting at position 1, so a(1) = 1.
%e A032740(2) = 10 is a substring of 1024 = 2^10 starting at position 1, so a(2) = 1.
%e A032740(3) = 36 is a substring of 68719476736 = 2^36 starting at position 10, so a(3) = 10.
%K base,easy,nonn
%O 1,3
%A _Cino Hilliard_, Dec 25 2006, corrected Jun 26 2007
%E Edited by _N. J. A. Sloane_ at the suggestion of _Andrew S. Plewe_, Jun 23 2007
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