n | a(n) |
---|---|
1 | 4 |
2 | 35 |
3 | 243 |
4 | 1875 |
5 | 15150 |
6 | 115776 |
7 | 903439 |
8 | 7005461 |
9 | 54249716 |
10 | 420545092 |
11 | 3257486504 |
12 | 25234938173 |
13 | 195482980668 |
14 | 1514241800363 |
15 | 11729682534441 |
16 | 90860069201775 |
17 | 703816232110196 |
18 | 5451868968128240 |
19 | 42230976869002531 |
20 | 327127333101076004 |
[4,35,243,1875,15150,115776,903439,7005461, 54249716,420545092,3257486504,25234938173, 195482980668,1514241800363,11729682534441, 90860069201775,703816232110196,5451868968128240, 42230976869002531,327127333101076004] |