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A265532 Largest base-4 palindrome m <= n, written in base 4. 0
0, 1, 2, 3, 3, 11, 11, 11, 11, 11, 22, 22, 22, 22, 22, 33, 33, 101, 101, 101, 101, 111, 111, 111, 111, 121, 121, 121, 121, 131, 131, 131, 131, 131, 202, 202, 202, 202, 212, 212, 212, 212, 222, 222, 222, 222, 232, 232, 232, 232, 232, 303, 303, 303, 303, 313, 313, 313, 313, 323, 323, 323, 323, 333, 333, 1001, 1001 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
LINKS
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: A210194 A210755 A219224 * A112858 A161960 A287428
KEYWORD
nonn,base
AUTHOR
N. J. A. Sloane, Dec 09 2015
STATUS
approved

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Last modified March 19 04:58 EDT 2024. Contains 370952 sequences. (Running on oeis4.)