n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 18 |
4 | 1236 |
5 | 46812 |
6 | 1592348 |
7 | 54926890 |
8 | 1988261908 |
9 | 75922639116 |
10 | 3044977814280 |
11 | 127417950149256 |
12 | 5527784646050032 |
13 | 247288999212565632 |
14 | 11357451257590359840 |
15 | 533618856431642996126 |
16 | 25573783371050570978268 |
17 | 1247199857452953231731592 |
18 | 61772272799794134860411162 |
[0,0,18,1236,46812,1592348,54926890,1988261908, 75922639116,3044977814280,127417950149256, 5527784646050032,247288999212565632, 11357451257590359840,533618856431642996126, 25573783371050570978268,1247199857452953231731592, 61772272799794134860411162] |