n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 10 |
3 | 63 |
4 | 454 |
5 | 3539 |
6 | 29008 |
7 | 246255 |
8 | 2145722 |
9 | 19078536 |
10 | 172402396 |
11 | 1578687082 |
12 | 14616730080 |
13 | 136606848093 |
14 | 1287022395324 |
15 | 12210382758519 |
16 | 116553763025178 |
17 | 1118580919711060 |
18 | 10786838228669692 |
19 | 104469304517331666 |
20 | 1015700422725526916 |
[1,2,10,63,454,3539,29008,246255,2145722,19078536, 172402396,1578687082,14616730080,136606848093, 1287022395324,12210382758519,116553763025178, 1118580919711060,10786838228669692, 104469304517331666,1015700422725526916] |