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 A014190 Palindromes in base 3 (written in base 10). 25
 0, 1, 2, 4, 8, 10, 13, 16, 20, 23, 26, 28, 40, 52, 56, 68, 80, 82, 91, 100, 112, 121, 130, 142, 151, 160, 164, 173, 182, 194, 203, 212, 224, 233, 242, 244, 280, 316, 328, 364, 400, 412, 448, 484, 488, 524, 560, 572, 608, 644, 656, 692, 728, 730, 757 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 LINKS T. D. Noe, Table of n, a(n) for n = 1..10000 P. De Geest, Palindromic numbers beyond base 10 Eric Weisstein's World of Mathematics, Palindromic Number Eric Weisstein's World of Mathematics, Ternary MAPLE isA014190 := proc(n)     local L;     L := convert(n, base, 3) ;     ListTools[Reverse](L) = L ; end proc: for n from 0 to 500 do     if isA014190(n) then         printf("%d, ", n) ;     end if; end do: # R. J. Mathar, Jul 07 2015 MATHEMATICA f[n_, b_] := Module[{i=IntegerDigits[n, b]}, i==Reverse[i]]; lst={}; Do[If[f[n, 3], AppendTo[lst, n]], {n, 1000}]; lst (* Vladimir Joseph Stephan Orlovsky, Jul 08 2009 *) PROG (MAGMA) [n: n in [0..800] | Intseq(n, 3) eq Reverse(Intseq(n, 3))]; // Vincenzo Librandi, Sep 09 2015 (Sage) [n for n in (0..757) if Word(n.digits(3)).is_palindrome()] # Peter Luschny, Sep 13 2018 CROSSREFS Cf. A007089, A118594, A134027. Palindromes in bases 2 through 10: A006995, A014190, A014192, A029952, A029953, A029954, A029803, A029955, A002113. Sequence in context: A100278 A075333 A297250 * A141400 A190744 A190751 Adjacent sequences:  A014187 A014188 A014189 * A014191 A014192 A014193 KEYWORD nonn,base,easy AUTHOR STATUS approved

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Last modified November 17 12:09 EST 2018. Contains 317276 sequences. (Running on oeis4.)