n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 42 |
3 | 224 |
4 | 1008 |
5 | 4032 |
6 | 14784 |
7 | 50688 |
8 | 164736 |
9 | 512512 |
10 | 1537536 |
11 | 4472832 |
12 | 12673024 |
13 | 35094528 |
14 | 95256576 |
15 | 254017536 |
16 | 666796032 |
17 | 1725825024 |
18 | 4410441728 |
19 | 11142168576 |
20 | 27855421440 |
21 | 68975329280 |
22 | 169303080960 |
23 | 412216197120 |
[1,6,42,224,1008,4032,14784,50688,164736,512512, 1537536,4472832,12673024,35094528,95256576, 254017536,666796032,1725825024,4410441728, 11142168576,27855421440,68975329280,169303080960, 412216197120] |