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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 15 |
| 4 | 90 |
| 5 | 104 |
| 6 | 495 |
| 7 | 665 |
| 8 | 702 |
| 9 | 740 |
| 10 | 836 |
| 11 | 975 |
| 12 | 1628 |
| 13 | 2625 |
| 14 | 2834 |
| 15 | 2849 |
| 16 | 3800 |
| 17 | 7384 |
| 18 | 12402 |
| 19 | 12560 |
| 20 | 13050 |
| 21 | 15250 |
| 22 | 16470 |
| 23 | 22935 |
| 24 | 25928 |
| 25 | 26274 |
| 26 | 29574 |
| 27 | 29890 |
| 28 | 32864 |
| 29 | 39524 |
| 30 | 41451 |
| 31 | 44286 |
| 32 | 47519 |
| 33 | 48326 |
| 34 | 48704 |
| 35 | 48872 |
| 36 | 49050 |
| 37 | 50850 |
| 38 | 53130 |
| 39 | 54816 |
| 40 | 56790 |
| 41 | 56864 |
| 42 | 57584 |
| 43 | 63456 |
[1,3,15,90,104,495,665,702,740,836,975,1628,2625, 2834,2849,3800,7384,12402,12560,13050,15250,16470, 22935,25928,26274,29574,29890,32864,39524,41451, 44286,47519,48326,48704,48872,49050,50850,53130, 54816,56790,56864,57584,63456] |