n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 4 |
4 | 22 |
5 | 208 |
6 | 5560 |
7 | 299600 |
8 | 33562696 |
9 | 7635498336 |
10 | 3518440564544 |
11 | 3275345183542208 |
12 | 6148914696963883712 |
13 | 23248573454127484129024 |
14 | 176848577040808821410837120 |
15 | 2704321280486889389864215362560 |
16 | 83076749736557243209409446411255936 |
17 | 5124252113632955685095523500148980125696 |
18 | 634332307869315502692705867068871886072665600 |
[1,2,4,22,208,5560,299600,33562696,7635498336, 3518440564544,3275345183542208, 6148914696963883712,23248573454127484129024, 176848577040808821410837120, 2704321280486889389864215362560, 83076749736557243209409446411255936, 5124252113632955685095523500148980125696, 634332307869315502692705867068871886072665600] |