n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 10 |
3 | 64 |
4 | 504 |
5 | 4368 |
6 | 40208 |
7 | 385728 |
8 | 3813888 |
9 | 38590208 |
10 | 397648384 |
11 | 4158436864 |
12 | 44020882944 |
13 | 470804670464 |
14 | 5079479547904 |
15 | 55217003536384 |
16 | 604200374845440 |
17 | 6649658071007232 |
18 | 73560096496779264 |
19 | 817467602640830464 |
20 | 9121818467786162176 |
[1,3,10,64,504,4368,40208,385728,3813888,38590208, 397648384,4158436864,44020882944,470804670464, 5079479547904,55217003536384,604200374845440, 6649658071007232,73560096496779264, 817467602640830464,9121818467786162176] |