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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 13 |
| 3 | 144 |
| 4 | 1597 |
| 5 | 10946 |
| 6 | 17711 |
| 7 | 121393 |
| 8 | 196418 |
| 9 | 1346269 |
| 10 | 14930352 |
| 11 | 102334155 |
| 12 | 165580141 |
| 13 | 1134903170 |
| 14 | 1836311903 |
| 15 | 12586269025 |
| 16 | 139583862445 |
| 17 | 1548008755920 |
| 18 | 10610209857723 |
| 19 | 17167680177565 |
| 20 | 117669030460994 |
| 21 | 190392490709135 |
| 22 | 1304969544928657 |
| 23 | 14472334024676221 |
| 24 | 160500643816367088 |
[1,13,144,1597,10946,17711,121393,196418,1346269, 14930352,102334155,165580141,1134903170, 1836311903,12586269025,139583862445,1548008755920, 10610209857723,17167680177565,117669030460994, 190392490709135,1304969544928657, 14472334024676221,160500643816367088] |