This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A046300 #8 Oct 10 2019 22:56:07
%S A046300 4,5,6,7,14,15,26,102,108,109,224,103,104,105,506,507,452,1169,1170,
%T A046300 1171,8228,10419,15186,5227,16619,16620,16621,25102,130090,62640,
%U A046300 330791,330792,351403,273100,681504,649069,352375,3045104,3045105,3635007
%N A046300 Smallest integer k such that 2^n is the largest power of two that is contained in 2^k as a proper substring.
%C A046300 First terms of A046287-A046299.
%e A046300 2^4={1}6 and 2^0=1; 2^5=3{2} and 2^1=2; 2^6=6{4} and 2^2=4; etc.
%Y A046300 Cf. A033921.
%K A046300 nonn,base
%O A046300 0,1
%A A046300 _Patrick De Geest_, Jun 15 1998
%E A046300 Definition reworded, offset changed to 0, and terms a(20)-a(36) added by _Jon E. Schoenfield_, Jun 04 2010
%E A046300 a(37)-a(39) from _Jon E. Schoenfield_, Jul 10 2010