n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 37 |
4 | 532 |
5 | 10426 |
6 | 259300 |
7 | 7823908 |
8 | 277713904 |
9 | 11339452792 |
10 | 523621438336 |
11 | 26982030104536 |
12 | 1534947906550528 |
13 | 95550736737542464 |
14 | 6460746383585984512 |
15 | 471533064029919744256 |
16 | 36946948091091750496000 |
17 | 3093472887944746070621056 |
[1,1,4,37,532,10426,259300,7823908,277713904, 11339452792,523621438336,26982030104536, 1534947906550528,95550736737542464, 6460746383585984512,471533064029919744256, 36946948091091750496000,3093472887944746070621056] |