# A274507 (b-file synthesized from sequence entry) 1 19 2 31 3 67 4 127 5 151 6 211 7 271 8 307 9 547 10 727 11 787 12 811 13 907 14 967 15 991 16 1447 17 1531 18 1831 19 1867 20 2131 21 2467 22 2647 23 2887 24 2971 25 3967 26 5107 27 5227 28 5407 29 5431 30 5827 31 6091 32 6427 33 6451 34 6607 35 6907 36 6991 37 7411 38 8191 39 8431 40 8707 41 9511 42 10111