I reserved some reverse Sierpinski/Riesel problems with only <=3 bases remain and found those primes:
22*38^15791
27*34^30861
28*74^33691
Riesel k=27 and Riesel k=28 were proven!!!
These forms have no primes found and likely tested to at least n=5000:
27*62^n+1
28*41^n+1
22*62^n1
Reserving 18*174^n1, 32*54^n1, 32*71^n1 and 32*77^n1.
Last fiddled with by sweety439 on 20170220 at 18:00
