Does anyone have a table of the class numbers ($h_n$) of cyclotomic fields (upto say, n = 250-300 for $\mathbb Q(\mu_n)$)?
I can find tables for the relative class number ($h_n^-$) in various places like Washington's book and I can also find tables for class numbers of $\mathbb Q(\zeta_p)$ for $p$ prime. However, I am really interested in the class numbers for $n$ composite and I don't seem to be able to locate any. Probably someone with better googling skills could locate it...
Sage also takes too long to calculate class numbers after a point.
Alternatively, are there any results known on what $h_n^+ = h_n/h_n^-$ can be for the range $n \leq 300$?
I would appreciate it if the table were in a format where I could easily copy paste from.