A265531 Largest base-4 palindrome m <= n, written in base 10.

0, 1, 2, 3, 3, 5, 5, 5, 5, 5, 10, 10, 10, 10, 10, 15, 15, 17, 17, 17, 17, 21, 21, 21, 21, 25, 25, 25, 25, 29, 29, 29, 29, 29, 34, 34, 34, 34, 38, 38, 38, 38, 42, 42, 42, 42, 46, 46, 46, 46, 46, 51, 51, 51, 51, 55, 55, 55, 55, 59, 59, 59, 59, 63, 63, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65

Offset

0,3

Links

Table of n, a(n) for n=0..81.

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: A113730 A154404 A225577 * A083662 A256405 A130149

Adjacent sequences: A265528 A265529 A265530 * A265532 A265533 A265534

Keyword

nonn,base

Author

N. J. A. Sloane, Dec 09 2015

Status

approved