n | a(n) |
---|---|
2 | 3 |
3 | 21 |
4 | 125 |
5 | 693 |
6 | 3669 |
7 | 18773 |
8 | 93525 |
9 | 456021 |
10 | 2184533 |
11 | 10310997 |
12 | 48059733 |
13 | 221599061 |
14 | 1012225365 |
15 | 4585772373 |
16 | 20624790869 |
17 | 92162839893 |
18 | 409453548885 |
19 | 1809612887381 |
20 | 7960006055253 |
21 | 34863681197397 |
22 | 152099108509013 |
23 | 661172992169301 |
24 | 2864594294232405 |
25 | 12373170851239253 |
[3,21,125,693,3669,18773,93525,456021,2184533, 10310997,48059733,221599061,1012225365,4585772373, 20624790869,92162839893,409453548885, 1809612887381,7960006055253,34863681197397, 152099108509013,661172992169301,2864594294232405, 12373170851239253] |