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 Nov 14 answered Exciting games and material to motivate children to math Nov 14 awarded Supporter Nov 14 comment Linear recursion with coefficients depending on n Sorry, you acutally answered my question completly. I had different expectations and didn't want to see that you are right... ;) Nov 14 accepted Linear recursion with coefficients depending on n Nov 12 awarded Editor Nov 12 comment Is there a good proof that all the polynomials in this family are irreducible? Sorry, I improved the answere a little bit. Nov 12 revised Is there a good proof that all the polynomials in this family are irreducible? added 65 characters in body Nov 12 comment Linear recursion with coefficients depending on n You were some seconds faster... :) Since there is a genreal method for all linear recursions, I thought maybe this could be extended to this case somehow. But if you say that you don't think so it's also a very useful answere! Nov 12 comment Linear recursion with coefficients depending on n Yeah you are right of course, but there are helpful methods anyway. Either through generating functions or the characteristic polynomial, see here for example. Nov 12 comment Linear recursion with coefficients depending on n Well also if have specefic $(b_n)_{n≥0}$ and $(c_n)_{n≥0}$, it might be really difficult to find the solution if I dont' have the right idea. I was wondering if there is something like a characteristic polynomial for this case. Nov 12 answered Is there a good proof that all the polynomials in this family are irreducible? Nov 12 asked Linear recursion with coefficients depending on n Oct 8 awarded Organizer Oct 8 revised arranging a 30 character word with letters x, y, z added more tags Oct 8 suggested approved edit on arranging a 30 character word with letters x, y, z Oct 7 awarded Teacher Oct 7 answered Max Hamming Distance Oct 7 comment Recursive Generating function for enumerating leaf labeled binary trees Uh yes, thanks a lot! I totally forgot that I've to deal with labeled structures. Oct 7 awarded Scholar Oct 7 accepted Recursive Generating function for enumerating leaf labeled binary trees