Fractional part of 15^(1/3) = 1/3 + 1/8 + 1/127 + ... Generated with Perl's Math::BigFloat module. Number of digits in terms is as follows: 1, 1, 3, 6, 11, 22, 44, 89, 177, 355, ...
EXAMPLE
Cube root of 15 = 2.4662120743304701014916113231545890427354844866281...