Re: [PURRS-devel] problem with PURRS ? - with regards to OEIS's A136429

Alexander Povolotsky wrote:

x(n)=x(n-x(n-1))+x(n-x(n-2))

PURRS output "this recurrence is malformed"

The output message has to be interpreted wrt the current capabilities of the system. PURRS cannot handle this kind of recurrence, so it says it is malformed. See http://www.cs.unipr.it/purrs/details for info on the kind of recurrences that PURRS can handle.

Cheers, Enea.