# A107990 (b-file synthesized from sequence entry) 1 2 2 3 3 5 4 43 5 89 6 113 7 131 8 163 9 457 10 467 11 509 12 541 13 587 14 739 15 773 16 887 17 1109 18 1123 19 1201 20 1307 21 1319 22 1409 23 1613 24 1741 25 1747 26 1787 27 1979 28 2063 29 2069 30 2459 31 2467 32 2671 33 2689 34 2741 35 2789 36 3187 37 3203 38 3539 39 3547 40 3557 41 3643 42 3823 43 3917 44 3989 45 4021 46 4441 47 4447