Fractional part of 40^(1/3) = 1/3 + 1/12 + 1/305 + ... Generated with Perl's Math::BigFloat module. Number of digits in terms is as follows: 1, 2, 3, 6, 11, 22, 44, 88, 177, 353, ...
EXAMPLE
Cube root of 40 = 3.4199518933533939787062177450877202197361102210861...