n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 7 |
4 | 25 |
5 | 61 |
6 | 1201 |
7 | 7771 |
8 | 30577 |
9 | 1058905 |
10 | 9904321 |
11 | 53722351 |
12 | 2708688841 |
13 | 33126146197 |
14 | 228967340785 |
15 | 15262865820931 |
16 | 230517745701601 |
17 | 1936173471789361 |
18 | 161021598306402817 |
19 | 2894434429492525015 |
20 | 28614958982310290041 |
[1,1,1,7,25,61,1201,7771,30577,1058905,9904321, 53722351,2708688841,33126146197,228967340785, 15262865820931,230517745701601,1936173471789361, 161021598306402817,2894434429492525015, 28614958982310290041] |