Table 1: Symmetric Pseudoprimes Less than 10^4 Relative to Polynomials of Degree 1 Carmichael f(x)=x-2 f(x)=x-3 f(x)=x-5 less than 10^6 -------- -------- -------- -------------- 341 (6) 4 561 561 (66) (10) 1105 645 91 (15) 1729 1105 121 (20) 2465 1387 286 (65) 2821 1729 (561) 124 6601 1905 671 (190) 8911 2047 703 217 10585 2465 (726) (310) 15841 2701 949 (435) 29341 2821 1105 561 41041 3277 1541 781 46657 4033 1729 (1105) 52633 4369 1891 1541 62745 4371 2465 1729 63973 4681 2665 1891 75361 5461 2701 (2465) 101101 6601 2821 2821 115921 7957 3281 (3565) 126217 8321 3367 (3820) 162401 8481 3751 4123 172081 8911 4961 (4495) 188461 5551 5461 252601 6601 5611 278545 7381 5662 294409 8401 5731 314821 8911 6601 334153 (6735) 340561 7449 399001 7813 410041 8029 449065 (8290) 488881 8911 512461 9881 530881 552721 656601 658801 670033 721801 748657 825265 838201 852841 873181 997633