n | a(n) |
---|---|
4 | 1 |
5 | 4 |
6 | 62 |
7 | 340 |
8 | 4734 |
9 | 33855 |
10 | 495371 |
11 | 4403025 |
12 | 70083872 |
13 | 746704117 |
14 | 13023762276 |
15 | 161905131484 |
16 | 3091115525637 |
17 | 43928623624790 |
18 | 914530883776894 |
19 | 14623431780216366 |
20 | 330413968185491070 |
21 | 5870376151413374683 |
22 | 143271256595612492851 |
23 | 2799645366893284489691 |
[1,4,62,340,4734,33855,495371,4403025,70083872, 746704117,13023762276,161905131484,3091115525637, 43928623624790,914530883776894,14623431780216366, 330413968185491070,5870376151413374683, 143271256595612492851,2799645366893284489691] |