n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 7 |
4 | 23 |
5 | 71 |
6 | 261 |
7 | 925 |
8 | 3455 |
9 | 12877 |
10 | 48693 |
11 | 184757 |
12 | 705713 |
13 | 2704157 |
14 | 10401527 |
15 | 40116677 |
16 | 155120975 |
17 | 601080391 |
18 | 2333619351 |
19 | 9075135301 |
20 | 35345312513 |
21 | 137846529751 |
22 | 538258059199 |
23 | 2104098963721 |
24 | 8233431436745 |
25 | 32247603683171 |
[1,3,7,23,71,261,925,3455,12877,48693,184757, 705713,2704157,10401527,40116677,155120975, 601080391,2333619351,9075135301,35345312513, 137846529751,538258059199,2104098963721, 8233431436745,32247603683171] |