taylor expansion and heap overflow

[Michael Wagner]

Dear All,

I'm working on an automatic generating function validator for parts of the OEIS.

What is the best strategy to deal with a heap overflow caused by a sagemath taylor expansion?
Culprits are functions of this form: 

'Product(1+x^m)^A001511(m)' or 'zeta(s)zeta(2s)zeta(3s)/zeta(6s)'.

In kind regards, 

Michael

[Martin R]

I guess it would be better to use lazy series.  Does LazyLaurentSeries work for you?

[Michael Wagner]

I tested it with LazyLaurentSeries and I think trying to get the coefficients is not something that makes sense for these types of gfs.