n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 19 |
4 | 118 |
5 | 875 |
6 | 6180 |
7 | 44389 |
8 | 317236 |
9 | 2270893 |
10 | 16247718 |
11 | 116267271 |
12 | 831957002 |
13 | 5953209015 |
14 | 42598982984 |
15 | 304823192665 |
16 | 2181205436792 |
17 | 15607926184313 |
18 | 111684733527034 |
19 | 799175992102923 |
20 | 5718617425358462 |
21 | 40920380028968819 |
[1,2,19,118,875,6180,44389,317236,2270893, 16247718,116267271,831957002,5953209015, 42598982984,304823192665,2181205436792, 15607926184313,111684733527034,799175992102923, 5718617425358462,40920380028968819] |