n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 15 |
4 | 57 |
5 | 273 |
6 | 1593 |
7 | 10953 |
8 | 86553 |
9 | 771993 |
10 | 7666713 |
11 | 83871513 |
12 | 1001957913 |
13 | 12976997913 |
14 | 181106559513 |
15 | 2709277004313 |
16 | 43247182412313 |
17 | 733699248716313 |
18 | 13182759232076313 |
19 | 250070586344012313 |
20 | 4994229502288460313 |
21 | 104743211837530700313 |
22 | 2301653725221036620313 |
[1,2,5,15,57,273,1593,10953,86553,771993,7666713, 83871513,1001957913,12976997913,181106559513, 2709277004313,43247182412313,733699248716313, 13182759232076313,250070586344012313, 4994229502288460313,104743211837530700313, 2301653725221036620313] |