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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 3 |
| 4 | 7 |
| 5 | 13 |
| 6 | 14 |
| 7 | 14 |
| 8 | 27 |
| 9 | 27 |
| 10 | 46 |
| 11 | 99 |
| 12 | 549 |
| 13 | 913 |
| 14 | 2637 |
| 15 | 3830 |
| 16 | 3929 |
| 17 | 15500 |
| 18 | 55253 |
| 19 | 85854 |
| 20 | 246166 |
| 21 | 1052057 |
| 22 | 2490138 |
| 23 | 2521393 |
| 24 | 16086534 |
| 25 | 29730193 |
| 26 | 38774343 |
| 27 | 84328391 |
| 28 | 317160458 |
| 29 | 371478595 |
| 30 | 600277187 |
| 31 | 811735945 |
| 32 | 849656112 |
| 33 | 139143919171 |
[1,3,3,7,13,14,14,27,27,46,99,549,913,2637,3830, 3929,15500,55253,85854,246166,1052057,2490138, 2521393,16086534,29730193,38774343,84328391, 317160458,371478595,600277187,811735945,849656112, 139143919171] |