n | a(n) |
---|---|
0 | 1 |
1 | 7 |
2 | 17 |
3 | 107 |
4 | 341 |
5 | 1799 |
6 | 4161 |
7 | 28123 |
8 | 81925 |
9 | 489335 |
10 | 1131601 |
11 | 7012459 |
12 | 22286421 |
13 | 117469191 |
14 | 273748289 |
15 | 1840690907 |
16 | 5390025989 |
17 | 31943819383 |
18 | 74441889105 |
19 | 461363702635 |
20 | 1465729172821 |
21 | 7728532584199 |
22 | 17872436875329 |
23 | 120787365293531 |
24 | 351860917551109 |
[1,7,17,107,341,1799,4161,28123,81925,489335, 1131601,7012459,22286421,117469191,273748289, 1840690907,5390025989,31943819383,74441889105, 461363702635,1465729172821,7728532584199, 17872436875329,120787365293531,351860917551109] |