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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 7 |
| 3 | 15 |
| 4 | 21 |
| 5 | 31 |
| 6 | 55 |
| 7 | 57 |
| 8 | 63 |
| 9 | 93 |
| 10 | 105 |
| 11 | 111 |
| 12 | 127 |
| 13 | 171 |
| 14 | 189 |
| 15 | 201 |
| 16 | 213 |
| 17 | 215 |
| 18 | 217 |
| 19 | 231 |
| 20 | 237 |
| 21 | 249 |
| 22 | 253 |
| 23 | 255 |
| 24 | 315 |
| 25 | 351 |
| 26 | 357 |
| 27 | 363 |
| 28 | 369 |
| 29 | 381 |
| 30 | 393 |
| 31 | 447 |
| 32 | 465 |
| 33 | 469 |
| 34 | 473 |
| 35 | 483 |
| 36 | 489 |
| 37 | 497 |
| 38 | 501 |
| 39 | 511 |
| 40 | 651 |
| 41 | 705 |
| 42 | 747 |
| 43 | 759 |
| 44 | 789 |
| 45 | 813 |
| 46 | 831 |
| 47 | 833 |
| 48 | 879 |
| 49 | 889 |
| 50 | 895 |
| 51 | 917 |
| 52 | 959 |
| 53 | 987 |
| 54 | 989 |
| 55 | 1001 |
| 56 | 1015 |
| 57 | 1023 |
| 58 | 1155 |
| 59 | 1365 |
| 60 | 1377 |
| 61 | 1407 |
| 62 | 1467 |
| 63 | 1491 |
| 64 | 1503 |
| 65 | 1505 |
| 66 | 1515 |
| 67 | 1533 |
| 68 | 1595 |
[3,7,15,21,31,55,57,63,93,105,111,127,171,189,201, 213,215,217,231,237,249,253,255,315,351,357,363, 369,381,393,447,465,469,473,483,489,497,501,511, 651,705,747,759,789,813,831,833,879,889,895,917, 959,987,989,1001,1015,1023,1155,1365,1377,1407, 1467,1491,1503,1505,1515,1533,1595] |