n | a(n) |
---|---|
1 | 1 |
2 | 18 |
3 | 248 |
4 | 3096 |
5 | 36880 |
6 | 428544 |
7 | 4910912 |
8 | 55827072 |
9 | 631657984 |
10 | 7126986240 |
11 | 80279745536 |
12 | 903384465408 |
13 | 10159659716608 |
14 | 114216655527936 |
15 | 1283765661040640 |
16 | 14427316078608384 |
17 | 162125499175862272 |
18 | 1821782963191283712 |
19 | 20470555400077574144 |
[1,18,248,3096,36880,428544,4910912,55827072, 631657984,7126986240,80279745536,903384465408, 10159659716608,114216655527936,1283765661040640, 14427316078608384,162125499175862272, 1821782963191283712,20470555400077574144] |