n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 15 |
4 | 51 |
5 | 187 |
6 | 715 |
7 | 2795 |
8 | 11051 |
9 | 43947 |
10 | 175275 |
11 | 700075 |
12 | 2798251 |
13 | 11188907 |
14 | 44747435 |
15 | 178973355 |
16 | 715860651 |
17 | 2863377067 |
18 | 11453377195 |
19 | 45813246635 |
20 | 183252462251 |
21 | 733008800427 |
22 | 2932033104555 |
23 | 11728128223915 |
24 | 46912504507051 |
25 | 187650001250987 |
[1,2,5,15,51,187,715,2795,11051,43947,175275, 700075,2798251,11188907,44747435,178973355, 715860651,2863377067,11453377195,45813246635, 183252462251,733008800427,2932033104555, 11728128223915,46912504507051,187650001250987] |