n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 0 |
4 | 4 |
5 | 31 |
6 | 70 |
7 | 3183 |
8 | 39814 |
9 | 261736 |
10 | 3371352 |
11 | 5739969 |
12 | 293929700 |
13 | 4459515314 |
14 | 7926716167 |
15 | 101442372383 |
16 | 1872646502198 |
17 | 24092766475124 |
18 | 49919329395336 |
19 | 75900705950969503 |
20 | 882317013876917212 |
21 | 32018280652900418322 |
22 | 883821770134261220212 |
[0,1,0,4,31,70,3183,39814,261736,3371352,5739969, 293929700,4459515314,7926716167,101442372383, 1872646502198,24092766475124,49919329395336, 75900705950969503,882317013876917212, 32018280652900418322,883821770134261220212] |