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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 10 |
| 3 | 272 |
| 4 | 24226 |
| 5 | 12053252 |
| 6 | 40086916024 |
| 7 | 429254371605824 |
| 8 | 23527609330364490754 |
| 9 | 10714627376371224032350052 |
| 10 | 16964729291782419425708732425300 |
| 11 | 109783535843179466164398767001178968704 |
| 12 | 6782057095273243388704415924996348722446049600 |
[1,2,10,272,24226,12053252,40086916024, 429254371605824,23527609330364490754, 10714627376371224032350052, 16964729291782419425708732425300, 109783535843179466164398767001178968704, 6782057095273243388704415924996348722446049600] |