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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 2 |
| 5 | 5 |
| 6 | 5 |
| 7 | 15 |
| 8 | 17 |
| 9 | 78 |
| 10 | 102 |
| 11 | 568 |
| 12 | 918 |
| 13 | 6115 |
| 14 | 11063 |
| 15 | 84095 |
| 16 | 167139 |
| 17 | 1377562 |
| 18 | 2919818 |
| 19 | 25322454 |
| 20 | 55877190 |
| 21 | 500009859 |
| 22 | 1130615111 |
| 23 | 10314022021 |
| 24 | 23685168139 |
| 25 | 218801537756 |
| 26 | 507728746032 |
| 27 | 4731965243042 |
| 28 | 11064419359152 |
| 29 | 103808357373783 |
[1,1,2,2,5,5,15,17,78,102,568,918,6115,11063, 84095,167139,1377562,2919818,25322454,55877190, 500009859,1130615111,10314022021,23685168139, 218801537756,507728746032,4731965243042, 11064419359152,103808357373783] |