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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 3 |
| 3 | 4 |
| 4 | 5 |
| 5 | 7 |
| 6 | 9 |
| 7 | 17 |
| 8 | 20 |
| 9 | 31 |
| 10 | 38 |
| 11 | 43 |
| 12 | 64 |
| 13 | 64 |
| 14 | 70 |
| 15 | 91 |
| 16 | 93 |
| 17 | 102 |
| 18 | 117 |
| 19 | 120 |
| 20 | 123 |
| 21 | 127 |
| 22 | 127 |
| 23 | 127 |
| 24 | 136 |
| 25 | 160 |
| 26 | 166 |
| 27 | 176 |
| 28 | 235 |
| 29 | 321 |
| 30 | 351 |
| 31 | 353 |
| 32 | 389 |
| 33 | 403 |
| 34 | 418 |
| 35 | 418 |
| 36 | 421 |
| 37 | 422 |
| 38 | 466 |
| 39 | 542 |
| 40 | 578 |
| 41 | 579 |
| 42 | 703 |
| 43 | 706 |
| 44 | 725 |
| 45 | 731 |
| 46 | 765 |
| 47 | 780 |
| 48 | 792 |
| 49 | 795 |
| 50 | 799 |
| 51 | 803 |
| 52 | 839 |
| 53 | 840 |
| 54 | 848 |
| 55 | 849 |
| 56 | 863 |
[2,3,4,5,7,9,17,20,31,38,43,64,64,70,91,93,102, 117,120,123,127,127,127,136,160,166,176,235,321, 351,353,389,403,418,418,421,422,466,542,578,579, 703,706,725,731,765,780,792,795,799,803,839,840, 848,849,863] |