n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 17 |
5 | 77 |
6 | 437 |
7 | 2957 |
8 | 23117 |
9 | 204557 |
10 | 2018957 |
11 | 21977357 |
12 | 261478157 |
13 | 3374988557 |
14 | 46964134157 |
15 | 700801318157 |
16 | 11162196262157 |
17 | 189005910310157 |
18 | 3390192763174157 |
19 | 64212742967590157 |
20 | 1280663747055910157 |
21 | 26826134832910630157 |
22 | 588826498721714470157 |
[0,1,2,5,17,77,437,2957,23117,204557,2018957, 21977357,261478157,3374988557,46964134157, 700801318157,11162196262157,189005910310157, 3390192763174157,64212742967590157, 1280663747055910157,26826134832910630157, 588826498721714470157] |