n | a(n) |
---|---|
0 | 0 |
1 | 2 |
2 | 3 |
3 | 10 |
4 | 35 |
5 | 191 |
6 | 1162 |
7 | 8996 |
8 | 77877 |
9 | 786757 |
10 | 8801276 |
11 | 110180038 |
12 | 1508049127 |
13 | 22568091079 |
14 | 364984569510 |
15 | 6360525167496 |
16 | 118634584548905 |
17 | 2360362530705801 |
18 | 49871009321693920 |
19 | 1115567129580176010 |
20 | 26332809559025886651 |
[0,2,3,10,35,191,1162,8996,77877,786757,8801276, 110180038,1508049127,22568091079,364984569510, 6360525167496,118634584548905,2360362530705801, 49871009321693920,1115567129580176010, 26332809559025886651] |