n | a(n) |
---|---|
1 | 1 |
2 | 8 |
3 | 26 |
4 | 105 |
5 | 526 |
6 | 3157 |
7 | 22100 |
8 | 176801 |
9 | 1591210 |
10 | 15912101 |
11 | 175033112 |
12 | 2100397345 |
13 | 27305165486 |
14 | 382272316805 |
15 | 5734084752076 |
16 | 91745356033217 |
17 | 1559671052564690 |
18 | 28074078946164421 |
19 | 533407499977124000 |
20 | 10668149999542480001 |
[1,8,26,105,526,3157,22100,176801,1591210, 15912101,175033112,2100397345,27305165486, 382272316805,5734084752076,91745356033217, 1559671052564690,28074078946164421, 533407499977124000,10668149999542480001] |