n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 17 |
4 | 112 |
5 | 769 |
6 | 7088 |
7 | 66387 |
8 | 763600 |
9 | 9164721 |
10 | 126474672 |
11 | 1820139771 |
12 | 29458146408 |
13 | 494179557897 |
14 | 9100332756552 |
15 | 174762729699459 |
16 | 3612983961103776 |
17 | 77711328568772193 |
18 | 1784695351000035744 |
19 | 42494646959739633771 |
[1,1,4,17,112,769,7088,66387,763600,9164721, 126474672,1820139771,29458146408,494179557897, 9100332756552,174762729699459,3612983961103776, 77711328568772193,1784695351000035744, 42494646959739633771] |