n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 7 |
4 | 25 |
5 | 61 |
6 | 1201 |
7 | 7771 |
8 | 30577 |
9 | 514585 |
10 | 8089921 |
11 | 63701551 |
12 | 832599241 |
13 | 14055894997 |
14 | 137066892145 |
15 | 3084240161731 |
16 | 70859008063201 |
17 | 849408115312561 |
18 | 15997591979202817 |
19 | 358582896987674455 |
20 | 6017079190150763641 |
21 | 209473179919282488301 |
[1,1,1,7,25,61,1201,7771,30577,514585,8089921, 63701551,832599241,14055894997,137066892145, 3084240161731,70859008063201,849408115312561, 15997591979202817,358582896987674455, 6017079190150763641,209473179919282488301] |