cp's OEIS Frontend

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.

A023400 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.

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%I A023400 #17 Jan 27 2022 22:44:52
%S A023400 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 A023400 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 A023400 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 A023400 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 A023400 Ray Chandler, <a href="/A023400/b023400.txt">Table of n, a(n) for n = 1..10000</a>
%K A023400 nonn,base
%O A023400 1,1
%A A023400 _David W. Wilson_