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A265521
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 10.
0
0, 1, 2, 3, 4, 5, 6, 7, 0, 9, 9, 9, 9, 9, 9, 9, 0, 9, 18, 18, 18, 18, 18, 18, 0, 9, 18, 27, 27, 27, 27, 27, 0, 9, 18, 27, 36, 36, 36, 36, 0, 9, 18, 27, 36, 45, 45, 45, 0, 9, 18, 27, 36, 45, 54, 54, 0, 9, 18, 27, 36, 45, 54, 63, 0, 65, 65, 65, 65, 65, 65, 65, 0, 73, 73, 73, 73, 73, 73, 73, 0, 81, 81, 81, 81, 81, 81, 81
OFFSET
0,3
CROSSREFS
Sequences related to palindromic floor and ceiling: A175298, A206913, A206914, A261423, A262038, and the large block of consecutive sequences beginning at A265509.
Sequence in context: A309959 A257848 A195831 * A004183 A265522 A256298
KEYWORD
nonn,base
AUTHOR
N. J. A. Sloane, Dec 09 2015
STATUS
approved