PFGW 3.4.1:
2^226741+66587 is 3-PRP! (83.6324s+0.0001s)
2^177768+39121 is 3-PRP! (54.0812s+0.0031s)
2^133449+61337 is 3-PRP! (30.6281s+0.0031s)
2^125681+46577 is 3-PRP! (22.3764s+0.0030s)
2^120642+53569 is 3-PRP! (21.4661s+0.0017s)
2^94533+42437 is 3-PRP! (14.3684s+0.0016s)
2^93463+48833 is 3-PRP! (14.1687s+0.0016s)
2^77235+77273 is 3-PRP! (8.2944s+0.0015s)
2^75123+77273 is 3-PRP! (8.0574s+0.0015s)
2^65309+16547 is 3-PRP! (7.0311s+0.0015s)
2^64595+77273 is 3-PRP! (5.5858s+0.0015s)
2^62995+23873 is 3-PRP! (5.4477s+0.0015s)
2^45526+36529 is 3-PRP! (3.5097s+0.0015s)
2^42132+25771 is 3-PRP! (2.2085s+0.0015s)
2^41755+69023 is 3-PRP! (2.1838s+0.0018s)
2^39516+57991 is 3-PRP! (2.0665s+0.0015s)
2^36755+77273 is 3-PRP! (1.8466s+0.0020s)
2^36583+65663 is 3-PRP! (1.8390s+0.0018s)
2^34961+34367 is 3-PRP! (1.7572s+0.0015s)
2^33416+27481 is 3-PRP! (1.6796s+0.0015s)

To be completed...