n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 15 |
4 | 93 |
5 | 765 |
6 | 6615 |
7 | 73395 |
8 | 855225 |
9 | 11348505 |
10 | 163593675 |
11 | 2633729175 |
12 | 44537325525 |
13 | 829112008725 |
14 | 16299062754975 |
15 | 340762189642875 |
16 | 7597436750528625 |
17 | 178862527106888625 |
18 | 4426363064514265875 |
19 | 115222810432347993375 |
20 | 3139125774622690978125 |
[1,1,3,15,93,765,6615,73395,855225,11348505, 163593675,2633729175,44537325525,829112008725, 16299062754975,340762189642875,7597436750528625, 178862527106888625,4426363064514265875, 115222810432347993375,3139125774622690978125] |