n | a(n) |
---|---|
0 | 1 |
1 | 7 |
2 | 42 |
3 | 238 |
4 | 1316 |
5 | 7196 |
6 | 39144 |
7 | 212408 |
8 | 1151248 |
9 | 6236272 |
10 | 33772704 |
11 | 182873824 |
12 | 990172736 |
13 | 5361148352 |
14 | 29026768512 |
15 | 157158071168 |
16 | 850889810176 |
17 | 4606905485056 |
18 | 24942786537984 |
19 | 135045615513088 |
20 | 731165912572928 |
[1,7,42,238,1316,7196,39144,212408,1151248, 6236272,33772704,182873824,990172736,5361148352, 29026768512,157158071168,850889810176, 4606905485056,24942786537984,135045615513088, 731165912572928] |