n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 16 |
5 | 177 |
6 | 1374 |
7 | 9370 |
8 | 60582 |
9 | 383577 |
10 | 2412331 |
11 | 15179013 |
12 | 95860821 |
13 | 608523299 |
14 | 3884620950 |
15 | 24937791531 |
16 | 160952346541 |
17 | 1044035753142 |
18 | 6803694176919 |
19 | 44526622599370 |
20 | 292538816181867 |
21 | 1928821043343096 |
22 | 12758939344710713 |
[0,0,0,16,177,1374,9370,60582,383577,2412331, 15179013,95860821,608523299,3884620950, 24937791531,160952346541,1044035753142, 6803694176919,44526622599370,292538816181867, 1928821043343096,12758939344710713] |