A247425 A005206(A003259(n)).

1, 3, 4, 6, 7, 9, 11, 12, 14, 16, 17, 19, 20, 22, 24, 25, 27, 28, 30, 32, 33, 35, 37, 38, 40, 41, 43, 45, 46, 48, 49, 51, 53, 54, 56, 58, 59, 61, 62, 64, 66, 67, 69, 71, 72, 74, 75, 77, 79, 80, 82, 83, 85, 87, 88, 90, 92, 93, 95, 96, 98, 100, 101, 103, 105

Offset: 1

Author

Eric M. Schmidt, Sep 17 2014

Keywords

• nonn

Comments

This is the function named psi in [Carlitz].

Links

• L. Carlitz, R. Scoville and T. Vaughan, Some arithmetic functions related to Fibonacci numbers, Fib. Quart., 11 (1973), 337-386.

Formula

a(n) = A000201(n) - 1 for n of the form A000201(A003234(j)) + 1; a(n) = A000201(n) for other n. [Carlitz, Thm. 4.6].