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A265515
a(n) = largest base-5 palindrome m <= n such that every base-5 digit of m is <= the corresponding digit of n; m is written in base 10.
0
0, 1, 2, 3, 4, 0, 6, 6, 6, 6, 0, 6, 12, 12, 12, 0, 6, 12, 18, 18, 0, 6, 12, 18, 24, 0, 26, 26, 26, 26, 0, 31, 31, 31, 31, 0, 36, 36, 36, 36, 0, 41, 41, 41, 41, 0, 46, 46, 46, 46, 0, 26, 52, 52, 52, 0, 31, 57, 57, 57, 0, 36, 62, 62, 62, 0, 41, 67, 67, 67, 0, 46, 72, 72, 72, 0, 26, 52, 78, 78, 0, 31, 57, 83, 83, 0, 36
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: A232749 A181578 A065332 * A336564 A129468 A236846
KEYWORD
nonn,base
AUTHOR
N. J. A. Sloane, Dec 09 2015
STATUS
approved