WinPFGW 3.6.5:
2^42521-2061 is 3-PRP! (2.1943s+0.0006s)
2^46735-2061 is 3-PRP! (2.5303s+0.0006s)
2^53905-2061 is 3-PRP! (4.2972s+0.0006s)
2^76981-2061 is 3-PRP! (8.7678s+0.0006s)
2^81343-2061 is 3-PRP! (9.2577s+0.0006s)
2^48735-2065 is 3-PRP! (2.6843s+0.0006s)
2^87421-2065 is 3-PRP! (10.1393s+0.0006s)
2^96785-2065 is 3-PRP! (16.2242s+0.0006s)
2^41694-2067 is 3-PRP! (2.3266s+0.0006s)
2^43971-2067 is 3-PRP! (2.4834s+0.0006s)
2^50952-2067 is 3-PRP! (4.1480s+0.0007s)
2^53306-2067 is 3-PRP! (4.3529s+0.0006s)
2^96876-2067 is 3-PRP! (15.4313s+0.0006s)
2^97874-2067 is 3-PRP! (15.9688s+0.0006s)

To be completed...