# A003459 (b-file synthesized from sequence entry) 1 2 2 3 3 5 4 7 5 11 6 13 7 17 8 31 9 37 10 71 11 73 12 79 13 97 14 113 15 131 16 199 17 311 18 337 19 373 20 733 21 919 22 991 23 1111111111111111111 24 11111111111111111111111