The file ipad_freq_imag contains two lists called disclist and ipadlist. Each list contains 355 entries.
Each entry in ipadlist is the IPAD (p = 3) of an imaginary quadratic field K with 3-class group of rank 2 and |d_K| < 10^8. The IPAD of such a field K is a 5-tuple in which the first entry is the 3-class group of K and the remaining four entries are the 3-class groups of the four degree 3 unramified extensions of K.
The i-th entry in disclist is the complete list of discriminants d_K of imaginary quadratic fields with 3-class group of rank 2, |d_K| < 10^8 and whose ipad appears as the i-th entry in ipadlist.
Note: Taken together, the discriminants appearing in disclist form a complete list of discriminants for imaginary quadratic fields K with 3-class group of rank 2 and |d_K| < 10^8. There are 461925 such fields.
Last updated: Sun Oct 26 17:19:07 EDT 2014