# A186884 (b-file synthesized from sequence entry) 1 3 2 5 3 7 4 11 5 13 6 17 7 19 8 29 9 31 10 37 11 71 12 127 13 173 14 199 15 233 16 251 17 257 18 379 19 491 20 613 21 881 22 2047 23 2633 24 2659 25 3373 26 3457 27 5501 28 5683 29 8191 30 11497 31 13249 32 15823 33 16879 34 18839 35 22669 36 24763 37 25037 38 26893 39 30139 40 45337 41 48473 42 56671 43 58921 44 65537 45 70687 46 74531 47 74597 48 77023 49 79669 50 87211 51 92237 52 102407 53 131071 54 133493 55 181421 56 184511 57 237379 58 250583 59 254491 60 281381