n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 11 |
3 | 38 |
4 | 263 |
5 | 1260 |
6 | 10871 |
7 | 66576 |
8 | 694599 |
9 | 5182960 |
10 | 63738259 |
11 | 561098224 |
12 | 7969169739 |
13 | 80865956192 |
14 | 1304923903919 |
15 | 14998292190464 |
16 | 271341955926479 |
17 | 3484403002454016 |
18 | 69899466563099435 |
19 | 991886288235459072 |
20 | 21861082423955691795 |
21 | 339715268249655012352 |
[1,2,11,38,263,1260,10871,66576,694599,5182960, 63738259,561098224,7969169739,80865956192, 1304923903919,14998292190464,271341955926479, 3484403002454016,69899466563099435, 991886288235459072,21861082423955691795, 339715268249655012352] |