n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 17 |
4 | 85 |
5 | 329 |
6 | 1645 |
7 | 6913 |
8 | 34565 |
9 | 152729 |
10 | 763645 |
11 | 3482097 |
12 | 17410485 |
13 | 81061001 |
14 | 405305005 |
15 | 1914744673 |
16 | 9573723365 |
17 | 45711939705 |
18 | 228559698525 |
19 | 1100105774033 |
20 | 5500528870165 |
21 | 26640170717033 |
22 | 133200853585165 |
23 | 648290412642625 |
24 | 3241452063213125 |
25 | 15838421978898265 |
26 | 79192109894491325 |
[1,1,5,17,85,329,1645,6913,34565,152729,763645, 3482097,17410485,81061001,405305005,1914744673, 9573723365,45711939705,228559698525,1100105774033, 5500528870165,26640170717033,133200853585165, 648290412642625,3241452063213125, 15838421978898265,79192109894491325] |