n | a(n) |
---|---|
1 | 5 |
2 | 15 |
3 | 35 |
4 | 57 |
5 | 319 |
6 | 1129 |
7 | 11129 |
8 | 31359 |
9 | 310453 |
10 | 1691837 |
11 | 7241691 |
12 | 15094799 |
13 | 31486929 |
14 | 159198031 |
15 | 1159198031 |
16 | 6203186877 |
17 | 11721529237 |
18 | 88429132553 |
19 | 129487682919 |
20 | 1228291054211 |
21 | 1394483927247 |
22 | 8800411584567 |
23 | 34329256355023 |
[5,15,35,57,319,1129,11129,31359,310453,1691837, 7241691,15094799,31486929,159198031,1159198031, 6203186877,11721529237,88429132553,129487682919, 1228291054211,1394483927247,8800411584567, 34329256355023] |