n | a(n) |
---|---|
1 | 6 |
2 | 36 |
3 | 216 |
4 | 1056 |
5 | 5004 |
6 | 22110 |
7 | 94554 |
8 | 391314 |
9 | 1582824 |
10 | 6278400 |
11 | 24520080 |
12 | 94523100 |
13 | 360449622 |
14 | 1361930880 |
15 | 5105718624 |
16 | 19011717024 |
17 | 70378031196 |
18 | 259193957658 |
19 | 950281765146 |
20 | 3470120581542 |
21 | 12626754295920 |
22 | 45799000309176 |
[6,36,216,1056,5004,22110,94554,391314,1582824, 6278400,24520080,94523100,360449622,1361930880, 5105718624,19011717024,70378031196,259193957658, 950281765146,3470120581542,12626754295920, 45799000309176] |