# A129990 (b-file synthesized from sequence entry) 1 2 2 3 3 5 4 7 5 11 6 17 7 19 8 23 9 29 10 31 11 41 12 43 13 71 14 79 15 97 16 173 17 179 18 257 19 269 20 311 21 389 22 691 23 4957 24 8423 25 11801 26 14621 27 25621 28 26951 29 38993 30 75743 31 102031 32 191671 33 668869