n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 15 |
4 | 105 |
5 | 945 |
6 | 10395 |
7 | 135135 |
8 | 2027025 |
9 | 34459425 |
10 | 218243025 |
11 | 1512548793 |
12 | 11451456921 |
13 | 94099903993 |
14 | 832822929881 |
15 | 7850100744697 |
16 | 77247769844585 |
17 | 766602148661941 |
18 | 7301487795390325 |
19 | 63860693057569633 |
20 | 549669975975395633 |
21 | 4765146317902742829 |
[1,1,3,15,105,945,10395,135135,2027025,34459425, 218243025,1512548793,11451456921,94099903993, 832822929881,7850100744697,77247769844585, 766602148661941,7301487795390325, 63860693057569633,549669975975395633, 4765146317902742829] |