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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 7 |
| 3 | 148 |
| 4 | 8695 |
| 5 | 1455433 |
| 6 | 715092412 |
| 7 | 1046279830240 |
| 8 | 4581706851060703 |
| 9 | 60144130721142806611 |
| 10 | 2367934845363738749478583 |
| 11 | 279660212608573899258160179472 |
| 12 | 99083333806943049370375436233999876 |
| 13 | 105314387436569180750449877597844106742044 |
[1,1,7,148,8695,1455433,715092412,1046279830240, 4581706851060703,60144130721142806611, 2367934845363738749478583, 279660212608573899258160179472, 99083333806943049370375436233999876, 105314387436569180750449877597844106742044] |