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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 6 |
| 2 | 13 |
| 3 | 102 |
| 4 | 653 |
| 5 | 7134 |
| 6 | 80257 |
| 7 | 1138638 |
| 8 | 17577977 |
| 9 | 314204406 |
| 10 | 6141247573 |
| 11 | 133263548022 |
| 12 | 3137974308293 |
| 13 | 80288176882254 |
| 14 | 2208474466924297 |
| 15 | 65151554971629918 |
| 16 | 2048997857627015537 |
| 17 | 68489950399363334886 |
| 18 | 2423571453722122287133 |
| 19 | 90533973988868134321542 |
| 20 | 3559734642493103582865533 |
| 21 | 146969730550281362048202174 |
| 22 | 6356719089202681283092805137 |
| 23 | 287440643937159436055153903598 |
| 24 | 13562631117348347165659535163497 |
[1,6,13,102,653,7134,80257,1138638,17577977, 314204406,6141247573,133263548022,3137974308293, 80288176882254,2208474466924297,65151554971629918, 2048997857627015537,68489950399363334886, 2423571453722122287133,90533973988868134321542, 3559734642493103582865533, 146969730550281362048202174, 6356719089202681283092805137, 287440643937159436055153903598, 13562631117348347165659535163497] |