n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 1 |
3 | 5 |
4 | 19 |
5 | 101 |
6 | 619 |
7 | 4421 |
8 | 35899 |
9 | 326981 |
10 | 3301819 |
11 | 36614981 |
12 | 442386619 |
13 | 5784634181 |
14 | 81393657019 |
15 | 1226280710981 |
16 | 19696509177019 |
17 | 335990918918981 |
18 | 6066382786809019 |
19 | 115578717622022981 |
20 | 2317323290554617019 |
21 | 48773618881154822981 |
[0,1,1,5,19,101,619,4421,35899,326981,3301819, 36614981,442386619,5784634181,81393657019, 1226280710981,19696509177019,335990918918981, 6066382786809019,115578717622022981, 2317323290554617019,48773618881154822981] |