n | a(n) |
---|---|
0 | 1 |
1 | 16 |
2 | 100 |
3 | 508 |
4 | 3004 |
5 | 18036 |
6 | 110980 |
7 | 692204 |
8 | 4364284 |
9 | 27740164 |
10 | 177454720 |
11 | 1141017256 |
12 | 7367263276 |
13 | 47731405088 |
14 | 310118484762 |
15 | 2019608005218 |
16 | 13178042856428 |
17 | 86126612389832 |
18 | 563648913800290 |
19 | 3692893237251226 |
[1,16,100,508,3004,18036,110980,692204,4364284, 27740164,177454720,1141017256,7367263276, 47731405088,310118484762,2019608005218, 13178042856428,86126612389832,563648913800290, 3692893237251226] |