n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 7 |
4 | 37 |
5 | 501 |
6 | 5491 |
7 | 100423 |
8 | 1750729 |
9 | 40959145 |
10 | 983720071 |
11 | 28320815931 |
12 | 862784739037 |
13 | 29728071447517 |
14 | 1093233588351451 |
15 | 44072354567202991 |
16 | 1894875749109296401 |
17 | 87722973117476411985 |
18 | 4313507974583583130255 |
19 | 225835795120784011395427 |
[1,1,1,7,37,501,5491,100423,1750729,40959145, 983720071,28320815931,862784739037,29728071447517, 1093233588351451,44072354567202991, 1894875749109296401,87722973117476411985, 4313507974583583130255,225835795120784011395427] |