n | a(n) |
---|---|
1 | 50 |
2 | 216 |
3 | 868 |
4 | 3492 |
5 | 13976 |
6 | 56472 |
7 | 225880 |
8 | 897624 |
9 | 3590576 |
10 | 14471600 |
11 | 57886120 |
12 | 229868968 |
13 | 919477136 |
14 | 3706264464 |
15 | 14825053488 |
16 | 58832739632 |
17 | 235330977088 |
18 | 948740144448 |
19 | 3794960504136 |
20 | 15061020431688 |
21 | 60244082031104 |
[50,216,868,3492,13976,56472,225880,897624, 3590576,14471600,57886120,229868968,919477136, 3706264464,14825053488,58832739632,235330977088, 948740144448,3794960504136,15061020431688, 60244082031104] |