Script for Recognised Generalised Fermat sequence A^2+1
 

HI to all
I would like small help
When I use sr1sieve in same cases I got
Recognized Generalized Fermat sequence A^2+1
In those cases sieving speed is nearly doubled verse normal speed.
So I need simple python script or perl script ( anything I can run under Linux) to check
and print out only patterns where Generalized Fermat sequence is recognized.
Input data would be text file contains ( so K is fixed to 4)

4 100
4 101
4 102
4 103
4 104...

Thanks