A085763 Number of palindromes between n and 2n (inclusive).

2, 3, 4, 5, 5, 5, 4, 3, 2, 1, 2, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 5, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 8, 7, 7, 7, 7, 8, 8, 8, 8, 8, 9, 9, 8, 8, 8, 9, 9, 9, 9, 9, 10, 10, 10, 9, 9, 10, 10, 10, 10, 10, 11, 11, 11, 11