n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 9 |
4 | 31 |
5 | 125 |
6 | 579 |
7 | 3009 |
8 | 17255 |
9 | 108005 |
10 | 731883 |
11 | 5331625 |
12 | 41501135 |
13 | 343405709 |
14 | 3007557523 |
15 | 27775308049 |
16 | 269603741111 |
17 | 2742598070709 |
18 | 29164361115067 |
19 | 323444222468089 |
20 | 3733412864370975 |
21 | 44767318872513885 |
22 | 556707323098632547 |
23 | 7168524182698345313 |
[1,1,3,9,31,125,579,3009,17255,108005,731883, 5331625,41501135,343405709,3007557523,27775308049, 269603741111,2742598070709,29164361115067, 323444222468089,3733412864370975, 44767318872513885,556707323098632547, 7168524182698345313] |