n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 2 |
5 | 3 |
6 | 4 |
7 | 5 |
8 | 15 |
9 | 67 |
10 | 535 |
11 | 8986 |
12 | 912849 |
13 | 1662587477 |
14 | 81083409799344 |
15 | 651628371908007046307 |
16 | 17425286333232464262345491287814 |
17 | 67473400772659322911375035883722405962101960016 |
18 | 12550884311528115972476468763183847895333364390665475583839492176837589 |
[1,1,2,2,3,4,5,15,67,535,8986,912849,1662587477, 81083409799344,651628371908007046307, 17425286333232464262345491287814, 67473400772659322911375035883722405962101960016, 12550884311528115972476468763183847895333364390665\ 475583839492176837589] |