%I #12 Jun 15 2024 09:26:09
%S 0,1,2,3,4,5,6,7,11,22,33,44,55,66,77,101,111,121,131,141,151,161,171,
%T 202,212,222,232,242,252,262,272,303,313,323,333,343,353,363,373,404,
%U 414,424,434,444,454,464,474,505,515,525,535,545,555,565,575,606,616
%N Palindromes in base 8 (written in base 8).
%t (* get NextPalindrome from A029965 *) Select[NestList[NextPalindrome, 0, 70], Max@IntegerDigits@# < 8 &] (* _Robert G. Wilson v_, May 09 2006 *)
%o (Python)
%o def A118599(n):
%o if n == 1: return 0
%o y = (x:=1<<(m:=n.bit_length()-2)-m%3)<<3
%o return int((s:=oct(n-x)[2:])+s[-2::-1] if n<x+y else (s:=oct(n-y)[2:])+s[::-1]) # _Chai Wah Wu_, Jun 14 2024
%Y Cf. A029803, A057148, A118594, A118595, A118596, A118597, A118598, A118599, A118600, A002113.
%K nonn,base
%O 1,3
%A _Martin Renner_, May 08 2006
%E More terms from _Robert G. Wilson v_, May 09 2006