n | a(n) |
---|---|
0 | 31 |
1 | 63 |
2 | 409 |
3 | 881 |
4 | 55031 |
5 | 110943 |
6 | 720689 |
7 | 1552321 |
8 | 96964591 |
9 | 195481503 |
10 | 1269853609 |
11 | 2735188721 |
12 | 170851554311 |
13 | 344438297343 |
14 | 2237481338369 |
15 | 4819400974081 |
16 | 301040341731391 |
17 | 606900084436863 |
18 | 3942440848352569 |
19 | 8491781781142001 |
20 | 530432911279156631 |
[31,63,409,881,55031,110943,720689,1552321, 96964591,195481503,1269853609,2735188721, 170851554311,344438297343,2237481338369, 4819400974081,301040341731391,606900084436863, 3942440848352569,8491781781142001, 530432911279156631] |