Fractional part of 90^(1/3) = 1/3 + 1/7 + 1/192 + ... Generated with Perl's Math::BigFloat module. Number of digits in terms is as follows: 1, 1, 3, 6, 11, 23, 45, 91, 181, 361, ...
EXAMPLE
Cube root of 90 = 4.4814047465571647087474820140385794711667499973426...