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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 3 |
| 5 | 1 |
| 6 | 5 |
| 7 | 5 |
| 8 | 13 |
| 9 | 21 |
| 10 | 65 |
| 11 | 79 |
| 12 | 331 |
| 13 | 533 |
| 14 | 2619 |
| 15 | 5227 |
| 16 | 28001 |
| 17 | 61339 |
| 18 | 390903 |
| 19 | 1035837 |
| 20 | 7813633 |
| 21 | 23994329 |
| 22 | 210020947 |
| 23 | 748949341 |
| 24 | 7662897803 |
| 25 | 32193163805 |
| 26 | 385464587673 |
| 27 | 1890804496873 |
| 28 | 26436803024815 |
| 29 | 151320783550691 |
[1,1,1,3,1,5,5,13,21,65,79,331,533,2619,5227, 28001,61339,390903,1035837,7813633,23994329, 210020947,748949341,7662897803,32193163805, 385464587673,1890804496873,26436803024815, 151320783550691] |