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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.

A222814 Numbers (not ending in 0) which are 9 times their digit-reversal.

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%I A222814 #14 Jan 09 2025 10:14:10
%S A222814 9801,98901,989901,9899901,98019801,98999901,980109801,989999901,
%T A222814 9801009801,9890198901,9899999901,98010009801,98901098901,98999999901,
%U A222814 980100009801,980198019801,989010098901,989901989901,989999999901,9801000009801,9801989019801,9890100098901
%N A222814 Numbers (not ending in 0) which are 9 times their digit-reversal.
%C A222814 There are Fibonacci(floor((n-2)/2)) terms with n digits (this is essentially A103609). - _Ray Chandler_, Oct 12 2017
%H A222814 Ray Chandler, <a href="/A222814/b222814.txt">Table of n, a(n) for n = 1..10000</a>
%H A222814 N. J. A. Sloane, <a href="http://arxiv.org/abs/1307.0453">2178 And All That</a>, Fib. Quart., 52 (2014), 99-120.
%H A222814 N. J. A. Sloane, <a href="/A001232/a001232.pdf">2178 And All That</a> [Local copy]
%t A222814 okQ[t_]:=t==Reverse[t]&&First[t]!=0&&Min[Length/@Split[t]]>1; Sort[ Flatten[ (9*99)#&/@Flatten[Table[FromDigits/@Select[Tuples[{0,1},n],okQ],{n,12}]]]] (* _Harvey P. Dale_, Jul 03 2013 *)
%Y A222814 Equals 9*A001232.
%K A222814 nonn,base
%O A222814 1,1
%A A222814 _N. J. A. Sloane_, Mar 11 2013