A060755 a(n) = log_2(A060723(n)).

0, 0, 0, 1, 0, 2, 2, 3, 0, 4, 4, 5, 3, 6, 6, 7, 3, 8, 8, 9, 7, 10, 10, 11, 8, 12, 12, 13, 11, 14, 14, 15, 10, 16, 16, 17, 15, 18, 18, 19, 16, 20, 20, 21, 19, 22, 22, 23, 19, 24, 24, 25, 23, 26, 26, 27, 24, 28, 28, 29, 27, 30, 30, 31, 25, 32, 32, 33, 31, 34, 34, 35, 32

Offset: 0

Author

Vladeta Jovovic, Apr 24 2001

Keywords

• nonn

Crossrefs

Cf. A060723, A305491.

Programs

Mathematica

Table[IntegerExponent[Denominator[Simplify[((1/2 (Sqrt[3] + 1))^x - (1/2 (Sqrt[3] - 1))^x Cos[Pi x])/Sqrt[3]]], 2], {x, 0, 72}]  (* Peter Luschny, Jun 02 2018 *)

Extensions

Data corrected by Peter Luschny, Jun 02 2018