Fractional part of 18^(1/3) = 1/2 + 1/9 + 1/104 + ... Generated with Perl's Math::BigFloat module. Number of digits in terms is as follows: 1, 1, 3, 5, 11, 22, 44, 88, 176, 352, ...
EXAMPLE
Cube root of 18 = 2.6207413942088966071416612804419962702394276457236...