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A265556 a(n) = smallest base-9 palindrome m >= n such that every base-9 digit of n is <= the corresponding digit of m; m is written in base 10. 0

%I #4 Dec 10 2015 10:33:56

%S 0,1,2,3,4,5,6,7,8,10,10,20,30,40,50,60,70,80,20,20,20,30,40,50,60,70,

%T 80,30,30,30,30,40,50,60,70,80,40,40,40,40,40,50,60,70,80,50,50,50,50,

%U 50,50,60,70,80,60,60,60,60,60,60,60,70,80,70,70,70,70,70,70,70,70,80,80,80,80,80,80,80,80,80,80,82

%N a(n) = smallest base-9 palindrome m >= n such that every base-9 digit of n is <= the corresponding digit of m; m is written in base 10.

%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 10 2015

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Last modified July 4 09:49 EDT 2024. Contains 373987 sequences. (Running on oeis4.)