n | a(n) |
---|---|
1 | 2 |
2 | 2 |
3 | 4 |
4 | 6 |
5 | 21 |
6 | 155 |
7 | 441 |
8 | 2925 |
9 | 10165 |
10 | 342056 |
11 | 2781505 |
12 | 10631544 |
13 | 163886800 |
14 | 498936010 |
15 | 5163068911 |
16 | 794010643700 |
17 | 17635639237580 |
18 | 353823355745574 |
19 | 16828233620277430 |
20 | 224220167903546529 |
21 | 11990471619719586785 |
22 | 113367767003198032480 |
23 | 4446177962278202834685 |
24 | 118332081735203144063619 |
25 | 1103720538399012083835935 |
26 | 78239926422758111576984420 |
[2,2,4,6,21,155,441,2925,10165,342056,2781505, 10631544,163886800,498936010,5163068911, 794010643700,17635639237580,353823355745574, 16828233620277430,224220167903546529, 11990471619719586785,113367767003198032480, 4446177962278202834685,118332081735203144063619, 1103720538399012083835935, 78239926422758111576984420] |