n | a(n) |
---|---|
1 | 4 |
2 | 28 |
3 | 175 |
4 | 1244 |
5 | 9628 |
6 | 78625 |
7 | 664916 |
8 | 5762207 |
9 | 50849233 |
10 | 455055612 |
11 | 4118066398 |
12 | 37607950279 |
13 | 346065645808 |
14 | 3204942065690 |
15 | 29844571475285 |
16 | 279238344248555 |
17 | 2623557165610820 |
18 | 24739954309690413 |
19 | 234057667376222380 |
20 | 2220819602783663481 |
[4,28,175,1244,9628,78625,664916,5762207,50849233, 455055612,4118066398,37607950279,346065645808, 3204942065690,29844571475285,279238344248555, 2623557165610820,24739954309690413, 234057667376222380,2220819602783663481] |