n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 24 |
5 | 119 |
6 | 705 |
7 | 4857 |
8 | 38142 |
9 | 336291 |
10 | 3289057 |
11 | 35337067 |
12 | 413698248 |
13 | 5241768017 |
14 | 71465060725 |
15 | 1043175024243 |
16 | 16231998346794 |
17 | 268207096127991 |
18 | 4690005160446721 |
19 | 86528908665043683 |
20 | 1679764981327051508 |
21 | 34226671269330933413 |
22 | 730361830628447403029 |
[1,1,2,6,24,119,705,4857,38142,336291,3289057, 35337067,413698248,5241768017,71465060725, 1043175024243,16231998346794,268207096127991, 4690005160446721,86528908665043683, 1679764981327051508,34226671269330933413, 730361830628447403029] |