# A106080 (b-file synthesized from sequence entry) 1 3 2 7 3 13 4 19 5 43 6 103 7 127 8 211 9 223 10 241 11 283 12 349 13 397 14 421 15 439 16 727 17 733 18 787 19 829 20 853 21 883 22 1597 23 1723 24 1741 25 1777 26 2017 27 2131 28 2287 29 2371 30 2383 31 2521 32 2593 33 2833 34 2857 35 3163 36 3181 37 3253 38 3319 39 3571 40 3583 41 3697 42 3853 43 3919 44 3967 45 4003 46 4021 47 4201