PFGW 3.4.0:
2^343604+9931 is 3-PRP! (217.3274s+0.0001s)
2^195435+59273 is 3-PRP! (58.5326s+0.0034s)
2^146027+24443 is 3-PRP! (33.2092s+0.0029s)
2^138112+45751 is 3-PRP! (31.3668s+0.0034s)
2^132034+49909 is 3-PRP! (30.0145s+0.0031s)
2^122336+60631 is 3-PRP! (21.6271s+0.0018s)
2^108549+75017 is 3-PRP! (19.3815s+0.0016s)
2^76498+49909 is 3-PRP! (8.1039s+0.0017s)
2^71377+12677 is 3-PRP! (7.5369s+0.0018s)
2^66604+63601 is 3-PRP! (7.0469s+0.0017s)
2^57752+69781 is 3-PRP! (4.9288s+0.0017s)
2^44752+64861 is 3-PRP! (3.3994s+0.0017s)
2^40713+6557 is 3-PRP! (2.2240s+0.0017s)
2^38632+64861 is 3-PRP! (1.9849s+0.0018s)
2^36285+61085 is 3-PRP! (1.7925s+0.0017s)
2^36118+64969 is 3-PRP! (1.7874s+0.0017s)
2^36005+43637 is 3-PRP! (1.7800s+0.0017s)
2^34893+38027 is 3-PRP! (1.7273s+0.0017s)
2^34352+58651 is 3-PRP! (1.7004s+0.0017s)
2^33596+5571 is 3-PRP! (1.6647s+0.0017s)

To be completed...