A075697 s(n) = sum-of-digits(A075696(n)).

7, 3, 4, 3, 7, 10, 3, 9, 11, 9, 9, 1, 5, 7, 8, 9, 6, 6, 7, 8, 6, 7, 8, 9, 9, 10, 9, 10, 11, 2, 9, 7, 5, 14, 15, 16, 17, 17, 18, 18, 19, 6, 8, 13, 7, 9, 7, 9, 11, 17, 19, 4, 7, 9, 7, 8, 9, 16, 5, 6, 7, 9, 8, 9, 15, 8, 9, 19, 7, 8, 9, 8, 9, 17, 11, 17, 9, 10, 12, 15, 17, 18, 19, 13, 1, 2, 3, 7, 9