n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 12 |
4 | 72 |
5 | 768 |
6 | 7776 |
7 | 118656 |
8 | 1696896 |
9 | 33623424 |
10 | 622245888 |
11 | 15149680128 |
12 | 344372041728 |
13 | 9939463852032 |
14 | 268073031942144 |
15 | 8944566120382464 |
16 | 279256558618312704 |
17 | 10572693702605438976 |
18 | 375117006060927516672 |
19 | 15884838808477768876032 |
20 | 631358485413914656899072 |
[1,1,2,12,72,768,7776,118656,1696896,33623424, 622245888,15149680128,344372041728,9939463852032, 268073031942144,8944566120382464, 279256558618312704,10572693702605438976, 375117006060927516672,15884838808477768876032, 631358485413914656899072] |