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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 4 |
| 4 | 15 |
| 5 | 6 |
| 6 | 78 |
| 7 | 8 |
| 8 | 247 |
| 9 | 202 |
| 10 | 708 |
| 11 | 12 |
| 12 | 4146 |
| 13 | 14 |
| 14 | 5498 |
| 15 | 8964 |
| 16 | 24135 |
| 17 | 18 |
| 18 | 81114 |
| 19 | 20 |
| 20 | 206520 |
| 21 | 193736 |
| 22 | 225558 |
| 23 | 24 |
| 24 | 2314378 |
| 25 | 242656 |
| 26 | 1278332 |
| 27 | 3622954 |
| 28 | 9209950 |
| 29 | 30 |
| 30 | 26654118 |
| 31 | 32 |
| 32 | 58890983 |
| 33 | 59213598 |
| 34 | 35652216 |
| 35 | 28736938 |
| 36 | 628796418 |
| 37 | 38 |
| 38 | 179307278 |
| 39 | 878319368 |
[1,3,4,15,6,78,8,247,202,708,12,4146,14,5498,8964, 24135,18,81114,20,206520,193736,225558,24,2314378, 242656,1278332,3622954,9209950,30,26654118,32, 58890983,59213598,35652216,28736938,628796418,38, 179307278,878319368] |