n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 7 |
4 | 21 |
5 | 31 |
6 | 123 |
7 | 209 |
8 | 601 |
9 | 971 |
10 | 3647 |
11 | 6589 |
12 | 18565 |
13 | 31375 |
14 | 114203 |
15 | 213073 |
16 | 593073 |
17 | 1030675 |
18 | 3674615 |
19 | 6997477 |
20 | 19315165 |
21 | 34221463 |
22 | 120206611 |
23 | 232218425 |
24 | 637066249 |
25 | 1144951835 |
26 | 3976689519 |
27 | 7765255757 |
28 | 21202165941 |
29 | 38528688671 |
[1,1,5,7,21,31,123,209,601,971,3647,6589,18565, 31375,114203,213073,593073,1030675,3674615, 6997477,19315165,34221463,120206611,232218425, 637066249,1144951835,3976689519,7765255757, 21202165941,38528688671] |