n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 30 |
4 | 210 |
5 | 4620 |
6 | 120120 |
7 | 4084080 |
8 | 116396280 |
9 | 2677114440 |
10 | 310545275040 |
11 | 14440355289360 |
12 | 1068586291412640 |
13 | 114873026326858800 |
14 | 9419588158802421600 |
15 | 442720643463713815200 |
16 | 54011918502573085454400 |
17 | 8587895041909120587249600 |
[1,2,6,30,210,4620,120120,4084080,116396280, 2677114440,310545275040,14440355289360, 1068586291412640,114873026326858800, 9419588158802421600,442720643463713815200, 54011918502573085454400,8587895041909120587249600] |