n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 4 |
4 | 10 |
5 | 24 |
6 | 46 |
7 | 100 |
8 | 225 |
9 | 525 |
10 | 1225 |
11 | 3136 |
12 | 7056 |
13 | 17640 |
14 | 44100 |
15 | 108900 |
16 | 261360 |
17 | 637065 |
18 | 1656369 |
19 | 4008004 |
20 | 10020010 |
21 | 25050025 |
22 | 64128064 |
23 | 155739584 |
24 | 393853824 |
25 | 1012766976 |
[1,2,4,10,24,46,100,225,525,1225,3136,7056,17640, 44100,108900,261360,637065,1656369,4008004, 10020010,25050025,64128064,155739584,393853824, 1012766976] |