OFFSET
0,6
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 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Vladeta Jovovic, Apr 24 2001
EXTENSIONS
Data corrected by Peter Luschny, Jun 02 2018
STATUS
approved