n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 12 |
4 | 108 |
5 | 1180 |
6 | 15300 |
7 | 234374 |
8 | 4190872 |
9 | 86080572 |
10 | 1999951380 |
11 | 51874664446 |
12 | 1486016035944 |
13 | 46596167540806 |
14 | 1587429536107688 |
15 | 58385852010664650 |
16 | 2305843009058576432 |
17 | 97322383750732656572 |
18 | 4371823119475059457716 |
19 | 208254700595813407930382 |
[1,2,12,108,1180,15300,234374,4190872,86080572, 1999951380,51874664446,1486016035944, 46596167540806,1587429536107688,58385852010664650, 2305843009058576432,97322383750732656572, 4371823119475059457716,208254700595813407930382] |