# A020618 (b-file synthesized from sequence entry) 1 3 2 7 3 11 4 13 5 17 6 23 7 29 8 31 9 47 10 53 11 59 12 61 13 67 14 79 15 109 16 127 17 541 18 619 19 661 20 743 21 877 22 1021 23 2333 24 4957