n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 17 |
5 | 79 |
6 | 503 |
7 | 4243 |
8 | 45823 |
9 | 612809 |
10 | 9903031 |
11 | 189244327 |
12 | 4203344543 |
13 | 106963067069 |
14 | 3081230793857 |
15 | 99460155441599 |
16 | 3566360917197283 |
17 | 140987300677114811 |
18 | 6104597616658111069 |
19 | 287835273618906460259 |
[0,1,2,5,17,79,503,4243,45823,612809,9903031, 189244327,4203344543,106963067069,3081230793857, 99460155441599,3566360917197283, 140987300677114811,6104597616658111069, 287835273618906460259] |