n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 13 |
4 | 111 |
5 | 1381 |
6 | 25623 |
7 | 678133 |
8 | 26169951 |
9 | 1447456261 |
10 | 114973232583 |
11 | 13034314621813 |
12 | 2103826463800911 |
13 | 481932523110975301 |
14 | 156356753093586913143 |
15 | 71729530379673590609653 |
16 | 46471511649877647638694591 |
17 | 42487759521494442057018000901 |
18 | 54781291469300608901184153800103 |
[1,1,3,13,111,1381,25623,678133,26169951, 1447456261,114973232583,13034314621813, 2103826463800911,481932523110975301, 156356753093586913143,71729530379673590609653, 46471511649877647638694591, 42487759521494442057018000901, 54781291469300608901184153800103] |