A265553 a(n) = smallest base-7 palindrome m >= n such that every base-7 digit of n is <= the corresponding digit of m; m is written in base 7.

0, 1, 2, 3, 4, 5, 6, 11, 11, 22, 33, 44, 55, 66, 22, 22, 22, 33, 44, 55, 66, 33, 33, 33, 33, 44, 55, 66, 44, 44, 44, 44, 44, 55, 66, 55, 55, 55, 55, 55, 55, 66, 66, 66, 66, 66, 66, 66, 66, 101, 101, 202, 303, 404, 505, 606, 111, 111, 212, 313, 414, 515, 616, 121, 121, 222, 323, 424, 525, 626, 131, 131, 232, 333, 434

Offset

0,3

Links

Table of n, a(n) for n=0..74.

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: A266402 A266404 A265569 * A057436 A108376 A108392

Adjacent sequences: A265550 A265551 A265552 * A265554 A265555 A265556

Keyword

nonn,base

Author

N. J. A. Sloane, Dec 10 2015

Status

approved