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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 1 |
| 9 | 3 |
| 10 | 5 |
| 11 | 9 |
| 12 | 13 |
| 13 | 25 |
| 14 | 49 |
| 15 | 124 |
| 16 | 263 |
| 17 | 846 |
| 18 | 2209 |
| 19 | 7594 |
| 20 | 21663 |
| 21 | 81736 |
| 22 | 275021 |
| 23 | 1243671 |
| 24 | 4831201 |
| 25 | 26082779 |
| 26 | 118314435 |
| 27 | 731456697 |
| 28 | 3805948133 |
| 29 | 26532655113 |
| 30 | 159482402665 |
[1,1,1,1,1,1,1,1,3,5,9,13,25,49,124,263,846,2209, 7594,21663,81736,275021,1243671,4831201,26082779, 118314435,731456697,3805948133,26532655113, 159482402665] |