n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 1 |
3 | 7 |
4 | 35 |
5 | 155 |
6 | 651 |
7 | 2667 |
8 | 10795 |
9 | 43435 |
10 | 174251 |
11 | 698027 |
12 | 2794155 |
13 | 11180715 |
14 | 44731051 |
15 | 178940587 |
16 | 715795115 |
17 | 2863245995 |
18 | 11453115051 |
19 | 45812722347 |
20 | 183251413675 |
21 | 733006703275 |
22 | 2932028910251 |
23 | 11728119835307 |
24 | 46912487729835 |
[0,0,1,7,35,155,651,2667,10795,43435,174251, 698027,2794155,11180715,44731051,178940587, 715795115,2863245995,11453115051,45812722347, 183251413675,733006703275,2932028910251, 11728119835307,46912487729835] |