n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 6 |
5 | 20 |
6 | 77 |
7 | 351 |
8 | 1923 |
9 | 12191 |
10 | 89343 |
11 | 739070 |
12 | 6799093 |
13 | 68520840 |
14 | 748504768 |
15 | 8788177682 |
16 | 110193653493 |
17 | 1468070974840 |
18 | 20694573733399 |
19 | 307578336213268 |
20 | 4805384561510138 |
21 | 78708210391001097 |
22 | 1348365584613851292 |
23 | 24108682771968553916 |
24 | 449043803118089980878 |
[1,1,2,6,20,77,351,1923,12191,89343,739070, 6799093,68520840,748504768,8788177682, 110193653493,1468070974840,20694573733399, 307578336213268,4805384561510138, 78708210391001097,1348365584613851292, 24108682771968553916,449043803118089980878] |