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A118595 Palindromes in base 4 (written in base 4). 10
0, 1, 2, 3, 11, 22, 33, 101, 111, 121, 131, 202, 212, 222, 232, 303, 313, 323, 333, 1001, 1111, 1221, 1331, 2002, 2112, 2222, 2332, 3003, 3113, 3223, 3333, 10001, 10101, 10201, 10301, 11011, 11111, 11211, 11311, 12021, 12121, 12221, 12321, 13031 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

2*a(n) and 3*a(n) give palindromes in base 10 for any n. - Arkadiusz Wesolowski, Jun 22 2012

Equivalently, palindromes k (written in base 10) such that 3*k is a palindrome. - Bruno Berselli, Sep 12 2018

LINKS

Table of n, a(n) for n=1..44.

MATHEMATICA

(* get NextPalindrome from A029965 *) Select[NestList[NextPalindrome, 0, 290], Max@IntegerDigits@# < 4 &] (* Robert G. Wilson v, May 09 2006 *)

CROSSREFS

Cf. A014192, A057148, A118594, A118595, A118596, A118597, A118598, A118599, A118600, A002113.

Sequence in context: A215952 A276375 A128921 * A229549 A229804 A241096

Adjacent sequences:  A118592 A118593 A118594 * A118596 A118597 A118598

KEYWORD

nonn,base

AUTHOR

Martin Renner, May 08 2006

EXTENSIONS

More terms from Robert G. Wilson v, May 09 2006

STATUS

approved

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Last modified October 22 22:35 EDT 2021. Contains 348180 sequences. (Running on oeis4.)