Fractional part of 48^(1/3) = 1/2 + 1/8 + 1/109 + ... Generated with Perl's Math::BigFloat module. Number of digits in terms is as follows: 1, 1, 3, 5, 9, 18, 36, 71, 142, 284, ...
EXAMPLE
Cube root of 48 = 3.6342411856642793177824235126545210048564209262824...