n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 7 |
4 | 15 |
5 | 35 |
6 | 77 |
7 | 179 |
8 | 429 |
9 | 1039 |
10 | 2525 |
11 | 6235 |
12 | 15463 |
13 | 38513 |
14 | 96231 |
15 | 241519 |
16 | 607339 |
17 | 1529533 |
18 | 3857447 |
19 | 9743247 |
20 | 24634043 |
21 | 62335495 |
22 | 157885967 |
23 | 400211085 |
24 | 1015080877 |
25 | 2576308943 |
[1,3,7,15,35,77,179,429,1039,2525,6235,15463, 38513,96231,241519,607339,1529533,3857447,9743247, 24634043,62335495,157885967,400211085,1015080877, 2576308943] |