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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 22 |
| 4 | 343 |
| 5 | 4664 |
| 6 | 58985 |
| 7 | 713306 |
| 8 | 8367627 |
| 9 | 96021948 |
| 10 | -150891621 |
| 11 | -13731137410 |
| 12 | -260644605199 |
| 13 | 86159119727012 |
| 14 | 19839246664059223 |
| 15 | 3106259112208391434 |
| 16 | 422859356777752723645 |
| 17 | 53509280234443297055856 |
| 18 | 6473262479112108841388067 |
| 19 | 759559693477989774385720278 |
[0,1,22,343,4664,58985,713306,8367627,96021948, -150891621,-13731137410,-260644605199, 86159119727012,19839246664059223, 3106259112208391434,422859356777752723645, 53509280234443297055856,6473262479112108841388067, 759559693477989774385720278] |