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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 7 |
| 3 | 15 |
| 4 | 31 |
| 5 | 43 |
| 6 | 51 |
| 7 | 63 |
| 8 | 67 |
| 9 | 75 |
| 10 | 79 |
| 11 | 87 |
| 12 | 99 |
| 13 | 111 |
| 14 | 115 |
| 15 | 127 |
| 16 | 135 |
| 17 | 151 |
| 18 | 159 |
| 19 | 163 |
| 20 | 171 |
| 21 | 195 |
| 22 | 211 |
| 23 | 219 |
| 24 | 223 |
| 25 | 231 |
| 26 | 235 |
| 27 | 259 |
| 28 | 267 |
| 29 | 283 |
| 30 | 303 |
| 31 | 307 |
| 32 | 319 |
| 33 | 327 |
| 34 | 331 |
| 35 | 339 |
| 36 | 367 |
| 37 | 391 |
| 38 | 399 |
| 39 | 415 |
| 40 | 427 |
| 41 | 451 |
| 42 | 463 |
| 43 | 475 |
| 44 | 483 |
| 45 | 487 |
| 46 | 495 |
| 47 | 511 |
| 48 | 519 |
| 49 | 535 |
| 50 | 559 |
| 51 | 579 |
| 52 | 583 |
| 53 | 591 |
| 54 | 615 |
| 55 | 619 |
| 56 | 631 |
| 57 | 639 |
[3,7,15,31,43,51,63,67,75,79,87,99,111,115,127, 135,151,159,163,171,195,211,219,223,231,235,259, 267,283,303,307,319,327,331,339,367,391,399,415, 427,451,463,475,483,487,495,511,519,535,559,579, 583,591,615,619,631,639] |