n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 8 |
3 | 34 |
4 | 146 |
5 | 627 |
6 | 2689 |
7 | 11521 |
8 | 49337 |
9 | 211233 |
10 | 904306 |
11 | 3871305 |
12 | 16572812 |
13 | 70947073 |
14 | 303719624 |
15 | 1300203634 |
16 | 5566087073 |
17 | 23828058969 |
18 | 102006385362 |
19 | 436682772844 |
20 | 1869410868456 |
21 | 8002827727921 |
22 | 34259590954322 |
[1,2,8,34,146,627,2689,11521,49337,211233,904306, 3871305,16572812,70947073,303719624,1300203634, 5566087073,23828058969,102006385362,436682772844, 1869410868456,8002827727921,34259590954322] |