n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 30 |
4 | 194 |
5 | 1442 |
6 | 11782 |
7 | 103102 |
8 | 951554 |
9 | 9173186 |
10 | 91780614 |
11 | 948985822 |
12 | 10110931650 |
13 | 110794764642 |
14 | 1247186300934 |
15 | 14412811665278 |
16 | 170949340705794 |
17 | 2081185257723778 |
18 | 26012832364535814 |
19 | 333929563132811678 |
20 | 4404347475363755714 |
21 | 59705917899701420834 |
22 | 832080588205468939782 |
[1,2,6,30,194,1442,11782,103102,951554,9173186, 91780614,948985822,10110931650,110794764642, 1247186300934,14412811665278,170949340705794, 2081185257723778,26012832364535814, 333929563132811678,4404347475363755714, 59705917899701420834,832080588205468939782] |