A265527 Largest base-2 palindrome m <= 2n, written in base 10.

0, 1, 3, 5, 7, 9, 9, 9, 15, 17, 17, 21, 21, 21, 27, 27, 31, 33, 33, 33, 33, 33, 33, 45, 45, 45, 51, 51, 51, 51, 51, 51, 63, 65, 65, 65, 65, 73, 73, 73, 73, 73, 73, 85, 85, 85, 85, 93, 93, 93, 99, 99, 99, 99, 107, 107, 107, 107, 107, 107, 119, 119, 119, 119, 127, 129, 129, 129, 129, 129, 129, 129, 129, 129, 129, 129

Offset

0,3

Links

Table of n, a(n) for n=0..75.

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: A206543 A274988 A265509 * A217250 A213923 A218452

Adjacent sequences: A265524 A265525 A265526 * A265528 A265529 A265530

Keyword

nonn,base

Author

N. J. A. Sloane, Dec 09 2015

Status

approved