OK, thanks for the update. I have updated the page to show your 3 Riesel k's=4421, 7019, & 8579 tested to n=195K.
k=7666 is for Proth's base 10 per your original post in this thread. It is also 1 mod 3. I'm only showing Riesel's base 10. This means I don't show any k's that are 1 mod 3 where all n's are divisible by 3 and of course no k's that are 0 mod 10, which can be reduced.
Gary
