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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.

A023411 If any even power of 2 ends with k 1's and 8's, they must be the first k terms of this sequence in reverse order.

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%I A023411 #13 Jan 27 2022 22:47:28
%S A023411 8,8,8,1,8,1,8,1,1,8,8,8,8,8,8,1,8,1,8,8,8,8,1,8,1,8,1,1,8,1,1,8,8,1,
%T A023411 1,8,1,1,8,8,1,8,1,8,8,1,8,1,1,1,8,8,8,1,8,8,1,8,1,1,8,8,1,8,1,1,1,8,
%U A023411 1,1,1,8,1,1,1,1,1,8,8,8,8,1,8,8,8,8,8,1,8,8,8,8,1,8,8,8,8,1,8,8,1,1,8,1,1,1,1,1
%N A023411 If any even power of 2 ends with k 1's and 8's, they must be the first k terms of this sequence in reverse order.
%H A023411 Ray Chandler, <a href="/A023411/b023411.txt">Table of n, a(n) for n = 1..10000</a>
%K A023411 nonn,base
%O A023411 1,1
%A A023411 _David W. Wilson_

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