n | a(n) |
---|---|
0 | 1 |
1 | 7 |
2 | 43 |
3 | 245 |
4 | 1328 |
5 | 6944 |
6 | 35328 |
7 | 175872 |
8 | 860160 |
9 | 4145152 |
10 | 19726336 |
11 | 92864512 |
12 | 433061888 |
13 | 2002780160 |
14 | 9193914368 |
15 | 41926262784 |
16 | 190052302848 |
17 | 856845975552 |
18 | 3843995729920 |
19 | 17166984282112 |
20 | 76347338653696 |
21 | 338237264494592 |
[1,7,43,245,1328,6944,35328,175872,860160,4145152, 19726336,92864512,433061888,2002780160,9193914368, 41926262784,190052302848,856845975552, 3843995729920,17166984282112,76347338653696, 338237264494592] |