read qEKHAD:

 
print(`The CF in 1-3 satisfies a 3-term recurrence`):

b:= (-1)^k*q^(k*(k+1)/2)*qbin(n+k,k)*qbin(n,k):
 
qzeilpap(b,k,n,[]):
print(`This took`):
print(time()):
print(`Seconds of CPU time`):
quit: