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A214423 Numbers n palindromic in only one base b, 2 <= b <= 10. 9

%I

%S 11,12,13,14,22,23,25,29,30,32,34,35,37,38,41,42,43,44,48,49,54,56,59,

%T 60,61,62,64,66,68,70,71,72,74,77,81,83,86,89,97,101,112,113,117,118,

%U 123,124,125,126,128,131,136,138,145,146,148,153,156,157,161

%N Numbers n palindromic in only one base b, 2 <= b <= 10.

%C The base for which n is a palindrome is given in A214427.

%H T. D. Noe, <a href="/A214423/b214423.txt">Table of n, a(n) for n = 1..10000</a>

%F A050812(n) = 1.

%e 11 is palindromic only in base 10.

%t n = -1; t = {}; While[Length[t] < 100, n++; If[Count[Table[s = IntegerDigits[n, m]; s == Reverse[s], {m, 2, 10}], True] == 1, AppendTo[t, n]]]; t

%Y Cf. A050813, A214424, A214425, A214426 (palindromic in 0, 2-4 bases)

%K nonn,base

%O 1,1

%A _T. D. Noe_, Jul 18 2012

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Last modified May 27 02:41 EDT 2022. Contains 354093 sequences. (Running on oeis4.)