n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 27 |
4 | 250 |
5 | 2951 |
6 | 42552 |
7 | 726097 |
8 | 14318908 |
9 | 320511105 |
10 | 8029282096 |
11 | 222590246099 |
12 | 6765751467576 |
13 | 223748991426247 |
14 | 7998566722112800 |
15 | 307359039816710361 |
16 | 12634664945078752528 |
17 | 553260940314226017473 |
18 | 25711427896197877574208 |
19 | 1263904006537455579001675 |
[1,1,4,27,250,2951,42552,726097,14318908, 320511105,8029282096,222590246099,6765751467576, 223748991426247,7998566722112800, 307359039816710361,12634664945078752528, 553260940314226017473,25711427896197877574208, 1263904006537455579001675] |