n | a(n) |
---|---|
1 | 4 |
2 | 131 |
3 | 9260 |
4 | 408599 |
5 | 8002304 |
6 | 91893727 |
7 | 729771318 |
8 | 4412536785 |
9 | 21616887220 |
10 | 89573637672 |
11 | 323882961806 |
12 | 1046082959963 |
13 | 3072688515840 |
14 | 8324694513560 |
15 | 21037789421604 |
16 | 50045713319142 |
17 | 112903666194660 |
18 | 243057004503527 |
[4,131,9260,408599,8002304,91893727,729771318, 4412536785,21616887220,89573637672,323882961806, 1046082959963,3072688515840,8324694513560, 21037789421604,50045713319142,112903666194660, 243057004503527] |