A265542 - OEIS

%I #6 Dec 09 2015 21:36:22

%S 0,1,2,3,4,5,6,7,8,8,11,11,11,11,11,11,11,11,11,11,22,22,22,22,22,22,

%T 22,22,22,22,33,33,33,33,33,33,33,33,33,33,44,44,44,44,44,44,44,44,44,

%U 44,55,55,55,55,55,55,55,55,55,55,66,66,66,66,66,66,66,66,66,66,77,77,77,77,77,77,77,77,77,77,88,88

%N Largest base-9 palindrome m <= n, written in base 9.

%Y Sequences related to palindromic floor and ceiling: A175298, A206913, A206914, A261423, A262038, and the large block of consecutive sequences beginning at A265509.

%K nonn,base

%O 0,3

%A _N. J. A. Sloane_, Dec 09 2015