Table 4: Symmetric Pseudoprimes Less Than 10^6 Relative to f(x) = x^2 - x - 1 (mod N) ----------------------------- N b0(N) b1(N) (N,b0(N)) ------ ------ ------ ---------- 705 423 565 141 2465 783 900 29 (2737) 0 1 N 3745 1498 750 749 4181 0 1 N 5777 1 -1 1 6721 0 1 N 10877 1 -1 1 13201 0 1 N 15251 0 1 N 24465 21903 5125 21 29281 18424 21715 329 34561 0 1 N 35785 28628 14315 7157 51841 0 1 N 54705 32823 43765 10941 64079 0 1 N 64681 0 1 N 67861 0 1 N 68251 0 1 N 75077 1 -1 1 (80189) 1 -1 1 90061 0 1 N 96049 0 1 N 97921 0 1 N 100065 20013 60040 20013 100127 1 -1 1 105281 43351 18580 6193 113573 1 -1 1 118441 0 1 N 146611 0 1 N 161027 1 -1 1 162133 1 -1 1 163081 0 1 N (179697) 0 1 N 186961 0 1 N (194833) 0 1 N 197209 0 1 N 209665 41933 125800 41933 219781 0 1 N 228241 190412 75659 181 229445 137668 183555 1 231703 1 -1 1 252601 0 1 N 254321 0 1 N 257761 0 1 N 268801 0 1 N 272611 0 1 N 283361 0 1 N 302101 0 1 N 303101 0 1 N (327313) 0 1 N 330929 0 1 N 399001 0 1 N 430127 1 -1 1 433621 0 1 N 438751 0 1 N 447145 82178 282790 2417 455961 182655 90652 1353 489601 0 1 N 490841 188786 113270 13 497761 430496 134531 13543 512461 0 1 N 520801 0 1 N 530611 0 1 N 556421 0 1 N (597793) 0 1 N (618449) 1 -1 1 635627 1 -1 1 636641 0 1 N 638189 0 1 N 639539 593530 92019 139 655201 0 1 N (667589) 1 -1 1 687169 30884 625402 7721 (697137) 0 1 N 722261 0 1 N 741751 0 1 N 851927 1 -1 1 852841 0 1 N 853469 0 1 N (920577) 0 1 N 925681 0 1 N (930097) 0 1 N 993345 397338 198670 198669 999941 0 1 N