n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 126 |
3 | 3078 |
4 | 32800 |
5 | 213750 |
6 | 1008126 |
7 | 3783976 |
8 | 11985408 |
9 | 33297075 |
10 | 83338750 |
11 | 191592126 |
12 | 410450976 |
13 | 828497488 |
14 | 1589341950 |
15 | 2917620000 |
16 | 5154021376 |
17 | 8801526501 |
18 | 14585352318 |
19 | 23529456550 |
20 | 37052820000 |
21 | 57089119626 |
22 | 86233820926 |
23 | 127923156648 |
24 | 186649920000 |
25 | 268221484375 |
26 | 380065968126 |
[0,1,126,3078,32800,213750,1008126,3783976, 11985408,33297075,83338750,191592126,410450976, 828497488,1589341950,2917620000,5154021376, 8801526501,14585352318,23529456550,37052820000, 57089119626,86233820926,127923156648,186649920000, 268221484375,380065968126] |