%I #17 Jan 27 2022 22:44:52
%S 2,9,9,2,9,2,2,2,2,2,2,9,9,2,9,9,9,9,2,2,9,2,9,2,9,2,2,9,2,2,9,2,2,9,
%T 9,9,9,9,2,2,2,2,2,2,9,2,2,9,9,2,9,9,9,9,9,2,9,2,9,2,2,9,9,9,2,2,9,9,
%U 9,2,9,2,2,2,2,9,9,9,9,9,9,9,9,2,9,2,9,2,2,2,9,9,2,2,2,9,9,2,9,9,2,9,9,9,2,2,9,9
%N If any power of 2 ends with k 2's and 9's, they must be the first k terms of this sequence in reverse order.
%H Ray Chandler, <a href="/A023400/b023400.txt">Table of n, a(n) for n = 1..10000</a>
%K nonn,base
%O 1,1
%A _David W. Wilson_
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