n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 13 |
4 | 77 |
5 | 572 |
6 | 5114 |
7 | 53406 |
8 | 637818 |
9 | 8572434 |
10 | 128041458 |
11 | 2103949314 |
12 | 37716766350 |
13 | 732505270152 |
14 | 15320768312784 |
15 | 343335554738328 |
16 | 8207083694470392 |
17 | 208444177385240472 |
18 | 5605513502234263272 |
[1,1,3,13,77,572,5114,53406,637818,8572434, 128041458,2103949314,37716766350,732505270152, 15320768312784,343335554738328,8207083694470392, 208444177385240472,5605513502234263272] |