Hello.

Is it possible to ask to Sympy to give formulas for simple recursive
sequences ?

For example,  *w_{n+1} = (n+1)/n*w_n + 1/n*  with  *w_0 = 1* , we have  *w_n
= 2 n + 1* . More simple example could be arithmetico-geometrical sequences
 *w_{n+1} = a*w_n + b* .

PS: I have first asked this question on sage list and one user points me to
Sympy.

Christophe BAL

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