A265563 Smallest base-4 palindrome m >= n, written in base 4.
0, 1, 2, 3, 11, 11, 22, 22, 22, 22, 22, 33, 33, 33, 33, 33, 101, 101, 111, 111, 111, 111, 121, 121, 121, 121, 131, 131, 131, 131, 202, 202, 202, 202, 202, 212, 212, 212, 212, 222, 222, 222, 222, 232, 232, 232, 232, 303, 303, 303, 303, 303, 313, 313, 313, 313, 323, 323, 323, 323, 333, 333, 333, 333, 1001, 1001, 1111
Offset: 0