n | a(n) |
---|---|
0 | 1 |
1 | 12 |
2 | 378 |
3 | 14700 |
4 | 629850 |
5 | 28540512 |
6 | 1341310320 |
7 | 64676424384 |
8 | 3178603964250 |
9 | 158529793422000 |
10 | 7999466594747628 |
11 | 407514796591710600 |
12 | 20924507330066816112 |
13 | 1081581197431986720000 |
14 | 56225684939117297889600 |
15 | 2937292879652230377427200 |
16 | 154108110471294720105987930 |
[1,12,378,14700,629850,28540512,1341310320, 64676424384,3178603964250,158529793422000, 7999466594747628,407514796591710600, 20924507330066816112,1081581197431986720000, 56225684939117297889600,2937292879652230377427200, 154108110471294720105987930] |