A265524 a(n) = largest base-9 palindrome m <= n such that every base-9 digit of m is <= the corresponding digit of n; m is written in base 9.

0, 1, 2, 3, 4, 5, 6, 7, 8, 0, 11, 11, 11, 11, 11, 11, 11, 11, 0, 11, 22, 22, 22, 22, 22, 22, 22, 0, 11, 22, 33, 33, 33, 33, 33, 33, 0, 11, 22, 33, 44, 44, 44, 44, 44, 0, 11, 22, 33, 44, 55, 55, 55, 55, 0, 11, 22, 33, 44, 55, 66, 66, 66, 0, 11, 22, 33, 44, 55, 66, 77, 77, 0, 11, 22, 33, 44, 55, 66, 77, 88, 0, 101, 101

Offset: 0

Author

N. J. A. Sloane, Dec 09 2015

Keywords

• nonn
• base

Crossrefs

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