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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 11 |
| 5 | 14 |
| 6 | 67 |
| 7 | 148 |
| 8 | 215 |
| 9 | 1223 |
| 10 | 1438 |
| 11 | 9851 |
| 12 | 21140 |
| 13 | 30991 |
| 14 | 114113 |
| 15 | 145104 |
| 16 | 1129841 |
| 17 | 1274945 |
| 18 | 11329401 |
| 19 | 23933747 |
| 20 | 35263148 |
| 21 | 164986339 |
| 22 | 200249487 |
| 23 | 765734800 |
| 24 | 1731719087 |
| 25 | 2497453887 |
| 26 | 24208804070 |
| 27 | 26706257957 |
| 28 | 291271383640 |
| 29 | 317977641597 |
| 30 | 1881159591625 |
[1,2,3,11,14,67,148,215,1223,1438,9851,21140, 30991,114113,145104,1129841,1274945,11329401, 23933747,35263148,164986339,200249487,765734800, 1731719087,2497453887,24208804070,26706257957, 291271383640,317977641597,1881159591625] |