n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 8 |
4 | 31 |
5 | 147 |
6 | 899 |
7 | 5777 |
8 | 41024 |
9 | 322488 |
10 | 2749325 |
11 | 25118777 |
12 | 245389896 |
13 | 2554780438 |
14 | 28009868787 |
15 | 323746545433 |
16 | 3933023224691 |
17 | 49924332801387 |
18 | 661988844566017 |
19 | 9138403573970063 |
20 | 131043199040556235 |
21 | 1949750421507432009 |
22 | 30031656711776544610 |
[1,1,2,8,31,147,899,5777,41024,322488,2749325, 25118777,245389896,2554780438,28009868787, 323746545433,3933023224691,49924332801387, 661988844566017,9138403573970063, 131043199040556235,1949750421507432009, 30031656711776544610] |