n | a(n) |
---|---|
1 | 3 |
2 | 7 |
3 | 17 |
4 | 52 |
5 | 207 |
6 | 999 |
7 | 5537 |
8 | 33753 |
9 | 220283 |
10 | 1513863 |
11 | 10833986 |
12 | 80107339 |
13 | 608461893 |
14 | 4726899406 |
15 | 37431060563 |
16 | 301327400284 |
17 | 2460711991071 |
18 | 20348626872625 |
19 | 170149288404678 |
20 | 1436870810843313 |
[3,7,17,52,207,999,5537,33753,220283,1513863, 10833986,80107339,608461893,4726899406, 37431060563,301327400284,2460711991071, 20348626872625,170149288404678,1436870810843313] |