A054083 Order of n in the permutation A054082 of the natural numbers.

2, 2, 2, 2, 7, 7, 7, 7, 7, 7, 9, 7, 9, 9, 9, 9, 9, 9, 19, 9, 19, 9, 19, 19, 19, 19, 16, 19, 16, 19, 16, 19, 19, 16, 16, 16, 16, 16, 19, 19, 16, 16, 19, 16, 19, 16, 19, 19, 16, 19, 19, 16, 19, 16, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19