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%I #4 Dec 09 2015 20:25:14
%S 0,1,2,3,4,5,6,7,0,11,11,11,11,11,11,11,0,11,22,22,22,22,22,22,0,11,
%T 22,33,33,33,33,33,0,11,22,33,44,44,44,44,0,11,22,33,44,55,55,55,0,11,
%U 22,33,44,55,66,66,0,11,22,33,44,55,66,77,0,101,101,101,101,101,101,101,0,111,111,111,111,111,111,111,0
%N a(n) = largest base-8 palindrome m <= n such that every base-8 digit of m is <= the corresponding digit of n; m is written in base 8.
%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