n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 26 |
3 | 140 |
4 | 776 |
5 | 4400 |
6 | 25376 |
7 | 148160 |
8 | 872576 |
9 | 5169920 |
10 | 30757376 |
11 | 183495680 |
12 | 1096779776 |
13 | 6563901440 |
14 | 39316299776 |
15 | 235629363200 |
16 | 1412702437376 |
17 | 8471919656960 |
18 | 50814338072576 |
19 | 304817308958720 |
20 | 1828628975845376 |
[1,5,26,140,776,4400,25376,148160,872576,5169920, 30757376,183495680,1096779776,6563901440, 39316299776,235629363200,1412702437376, 8471919656960,50814338072576,304817308958720, 1828628975845376] |