n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 12 |
3 | 112 |
4 | 1376 |
5 | 21056 |
6 | 386688 |
7 | 8286720 |
8 | 202958848 |
9 | 5592199168 |
10 | 171203895296 |
11 | 5765504860160 |
12 | 211811563929600 |
13 | 8429932686999552 |
14 | 361312700788375552 |
15 | 16592261047219388416 |
16 | 812749365813312487424 |
17 | 42299637489384965537792 |
18 | 2330989060564353634271232 |
[1,2,12,112,1376,21056,386688,8286720,202958848, 5592199168,171203895296,5765504860160, 211811563929600,8429932686999552, 361312700788375552,16592261047219388416, 812749365813312487424,42299637489384965537792, 2330989060564353634271232] |