n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 17 |
4 | 83 |
5 | 338 |
6 | 1923 |
7 | 11553 |
8 | 63028 |
9 | 359203 |
10 | 2172469 |
11 | 13026034 |
12 | 78106885 |
13 | 478415635 |
14 | 2957675956 |
15 | 18321372721 |
16 | 114301292581 |
17 | 718253640196 |
18 | 4531427831111 |
19 | 28699590926291 |
20 | 182566373639352 |
21 | 1165539703613397 |
[1,1,2,17,83,338,1923,11553,63028,359203,2172469, 13026034,78106885,478415635,2957675956, 18321372721,114301292581,718253640196, 4531427831111,28699590926291,182566373639352, 1165539703613397] |