n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 16 |
3 | 162 |
4 | 1536 |
5 | 15000 |
6 | 155520 |
7 | 1728720 |
8 | 20643840 |
9 | 264539520 |
10 | 3628800000 |
11 | 53129260800 |
12 | 827714764800 |
13 | 13680764697600 |
14 | 239217231052800 |
15 | 4413400992000000 |
16 | 85699747381248000 |
17 | 1747492334235648000 |
18 | 37338643451805696000 |
19 | 834363743704178688000 |
[0,1,16,162,1536,15000,155520,1728720,20643840, 264539520,3628800000,53129260800,827714764800, 13680764697600,239217231052800,4413400992000000, 85699747381248000,1747492334235648000, 37338643451805696000,834363743704178688000] |