6/5 update
 

Base 48 is at n=74430, 2 PRP's found so far in the range n=50-100k:

[code]
(48^54273-1)^2-2
(48^60039-1)^2-2
[/code]

Continuing to n = 100k.

Also reserving base 1656 for sieving, n = 100k-200k.

Releasing base 666, checked up to n = 40k. Found 2 new primes:
[CODE]
(666^3064-1)^2-2
(666^9068-1)^2-2
[/CODE]

7/7 update
 

Base 48 is at n = 83368, no additional PRP's found since the last update, continuing.

Base 1656 sieve is at p = 151.16 T, intending to stop at p = 200 T, as factors are presently being found at ~130000 CPU seconds per factor.

Sieve for base 1656, n = 100-200k complete at p=200T. The file is attached below, 11755 terms survived.

Reserving base 96 for sieving, n = 30k-100k.