n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 3 |
3 | 13 |
4 | 47 |
5 | 447 |
6 | 2163 |
7 | 24263 |
8 | 241727 |
9 | 2923783 |
10 | 16485763 |
11 | 169053487 |
12 | 4535472963 |
13 | 36316463227 |
14 | 879728844873 |
15 | 4476534430363 |
16 | 119919330795347 |
17 | 1374445897718223 |
18 | 106298577886531087 |
[0,1,3,13,47,447,2163,24263,241727,2923783, 16485763,169053487,4535472963,36316463227, 879728844873,4476534430363,119919330795347, 1374445897718223,106298577886531087] |