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A029730 Numbers that are palindromic in base 16. 3
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 34, 51, 68, 85, 102, 119, 136, 153, 170, 187, 204, 221, 238, 255, 257, 273, 289, 305, 321, 337, 353, 369, 385, 401, 417, 433, 449, 465, 481, 497, 514, 530, 546, 562, 578, 594, 610, 626, 642 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Reinhard Zumkeller, 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, Hexadecimal

Wikipedia, Palindromic_number

Wikipedia, Hexadecimal

Index entries for sequences related to palindromes

EXAMPLE

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F, 11, 22, 33, 44, 55, 66, 77, 88, 99, AA, BB, CC, DD, EE, FF, 101, 111, 121, 131, 141, 151, 161, 171, 181, 191,1A1, 1B1, 1C1, 1D1, 1E1, 1F1, 202, 212, 222, 232, 242, 252, 262, 272, 282, 292, 2A2, 2B2, 2C2, 2D2, 2E2, 2F2, 303, 313, 323, 333, 343, 353, 363, 373, 383, 393, 3A3, 3B3, 3C3, 3D3, 3E3, 3F3, 404  - Reinhard Zumkeller, Sep 23 2015

MATHEMATICA

f[n_, b_]:=Module[{i=IntegerDigits[n, b]}, i==Reverse[i]]; lst={}; Do[If[f[n, 16], AppendTo[lst, n]], {n, 7!}]; lst (* Vladimir Joseph Stephan Orlovsky, Jul 08 2009 *)

PROG

(Haskell)

a029730 n = a029730_list !! (n-1)

a029730_list = map (foldr (\h v -> 16 * v + h) 0) $

                   filter (\xs -> xs == reverse xs) a262437_tabf

-- Reinhard Zumkeller, Sep 23 2015

CROSSREFS

Cf. A262437.

Sequence in context: A044827 A048313 A043719 * A048327 A048340 A098312

Adjacent sequences:  A029727 A029728 A029729 * A029731 A029732 A029733

KEYWORD

nonn,base

AUTHOR

Patrick De Geest

STATUS

approved

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Last modified May 23 02:46 EDT 2017. Contains 286909 sequences.