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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 7 |
| 4 | 13 |
| 5 | 33 |
| 6 | 47 |
| 7 | 132 |
| 8 | 458 |
| 9 | 777 |
| 10 | 853 |
| 11 | 3845 |
| 12 | 4395 |
| 13 | 4783 |
| 14 | 4983 |
| 15 | 6038 |
| 16 | 6487 |
| 17 | 6719 |
| 18 | 6957 |
| 19 | 11707 |
| 20 | 12030 |
| 21 | 12688 |
| 22 | 13025 |
| 23 | 13365 |
| 24 | 13709 |
| 25 | 14057 |
| 26 | 14409 |
| 27 | 15861 |
| 28 | 17789 |
| 29 | 18598 |
| 30 | 19008 |
| 31 | 19845 |
| 32 | 20272 |
| 33 | 20702 |
| 34 | 21135 |
| 35 | 21570 |
| 36 | 22010 |
| 37 | 22458 |
| 38 | 23378 |
| 39 | 23850 |
| 40 | 24326 |
[1,3,7,13,33,47,132,458,777,853,3845,4395,4783, 4983,6038,6487,6719,6957,11707,12030,12688,13025, 13365,13709,14057,14409,15861,17789,18598,19008, 19845,20272,20702,21135,21570,22010,22458,23378, 23850,24326] |