n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 13 |
4 | 49 |
5 | 361 |
6 | 3121 |
7 | 39733 |
8 | 409249 |
9 | 6410641 |
10 | 91979041 |
11 | 1716516253 |
12 | 29795642449 |
13 | 660718214521 |
14 | 13656276138961 |
15 | 345794520085573 |
16 | 8290832204163649 |
17 | 237409681243284001 |
18 | 6465138777774530881 |
19 | 206263448435258395693 |
20 | 6296129943088315156849 |
21 | 221484543685548532051081 |
[1,1,1,13,49,361,3121,39733,409249,6410641, 91979041,1716516253,29795642449,660718214521, 13656276138961,345794520085573,8290832204163649, 237409681243284001,6465138777774530881, 206263448435258395693,6296129943088315156849, 221484543685548532051081] |