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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 15 |
| 6 | 25 |
| 7 | 29 |
| 8 | 73 |
| 9 | 90 |
| 10 | 139 |
| 11 | 194 |
| 12 | 242 |
| 13 | 939 |
| 14 | 3518 |
| 15 | 3963 |
| 16 | 4694 |
| 17 | 5570 |
| 18 | 5615 |
| 19 | 6702 |
| 20 | 13962 |
| 21 | 14269 |
| 22 | 16339 |
| 23 | 16882 |
| 24 | 22582 |
| 25 | 31415 |
| 26 | 105554 |
| 27 | 120749 |
[1,2,3,5,15,25,29,73,90,139,194,242,939,3518,3963, 4694,5570,5615,6702,13962,14269,16339,16882,22582, 31415,105554,120749] |