n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 5 |
6 | 67 |
7 | 481 |
8 | 4989 |
9 | 51979 |
10 | 570755 |
11 | 5865449 |
12 | 74226518 |
13 | 904772855 |
14 | 13111019601 |
15 | 202135743076 |
16 | 3307158697867 |
17 | 53256981940267 |
18 | 974755766640247 |
19 | 17629139875485487 |
20 | 357191085875727470 |
21 | 7585952737111971220 |
22 | 168542590546266903340 |
23 | 3718034609300727209976 |
[1,1,1,1,1,5,67,481,4989,51979,570755,5865449, 74226518,904772855,13111019601,202135743076, 3307158697867,53256981940267,974755766640247, 17629139875485487,357191085875727470, 7585952737111971220,168542590546266903340, 3718034609300727209976] |