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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 110 |
| 4 | 932 |
| 5 | 26451 |
| 6 | 234217 |
| 7 | 6812794 |
| 8 | 60485308 |
| 9 | 1761748159 |
| 10 | 15643423061 |
| 11 | 455678075546 |
| 12 | 4046220880948 |
| 13 | 117863060852067 |
| 14 | 1046572601513969 |
| 15 | 30485799411892266 |
| 16 | 270700616010831020 |
| 17 | 7885286478349158743 |
[1,5,110,932,26451,234217,6812794,60485308, 1761748159,15643423061,455678075546,4046220880948, 117863060852067,1046572601513969, 30485799411892266,270700616010831020, 7885286478349158743] |