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| n | a(n) |
|---|---|
| 1 | 61 |
| 2 | 259 |
| 3 | 1337 |
| 4 | 742 |
| 5 | 3186 |
| 6 | 30949 |
| 7 | 17895 |
| 8 | 69935 |
| 9 | 626266 |
| 10 | 365400 |
| 11 | 1352156 |
| 12 | 11593615 |
| 13 | 6769977 |
| 14 | 24284345 |
| 15 | 203188660 |
[61,259,1337,742,3186,30949,17895,69935,626266, 365400,1352156,11593615,6769977,24284345, 203188660] |