n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 4 |
4 | 25 |
5 | 231 |
6 | 2701 |
7 | 38963 |
8 | 662929 |
9 | 13037608 |
10 | 290586301 |
11 | 7241964357 |
12 | 199511192233 |
13 | 6020966627261 |
14 | 197526938563501 |
15 | 6999280556977816 |
16 | 266408120037084577 |
17 | 10840080711977589375 |
18 | 469561023814159909981 |
19 | 21573682777922810043335 |
20 | 1047866254345761285979321 |
[1,1,4,25,231,2701,38963,662929,13037608, 290586301,7241964357,199511192233,6020966627261, 197526938563501,6999280556977816, 266408120037084577,10840080711977589375, 469561023814159909981,21573682777922810043335, 1047866254345761285979321] |