n | a(n) |
---|---|
1 | 15 |
2 | 21 |
3 | 85 |
4 | 265 |
5 | 2761 |
6 | 10129 |
7 | 111001 |
8 | 887161 |
9 | 21047881 |
10 | 210471241 |
11 | 1037836969 |
12 | 68018232241 |
13 | 361167207241 |
14 | 3312775065961 |
15 | 49691625984361 |
16 | 1548286451713369 |
17 | 16361621692416529 |
18 | 294509190463488529 |
[15,21,85,265,2761,10129,111001,887161,21047881, 210471241,1037836969,68018232241,361167207241, 3312775065961,49691625984361,1548286451713369, 16361621692416529,294509190463488529] |