n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 2 |
3 | 18 |
4 | 446 |
5 | 26430 |
6 | 3596762 |
7 | 1111506858 |
8 | 774460794326 |
9 | 1206342801843750 |
10 | 4162927142993589122 |
11 | 31557464707483035620178 |
12 | 521560130632321900618457246 |
13 | 18669813048017298278379855511470 |
[0,1,2,18,446,26430,3596762,1111506858, 774460794326,1206342801843750,4162927142993589122, 31557464707483035620178, 521560130632321900618457246, 18669813048017298278379855511470] |