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

Enea Zaffanella zaffanella at cs.unipr.it
Mon Apr 7 09:18:17 CEST 2008

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
for info on the kind of recurrences that PURRS can handle.


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