n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 31 |
3 | 141 |
4 | 659 |
5 | 3005 |
6 | 13739 |
7 | 62669 |
8 | 285931 |
9 | 1304285 |
10 | 5949691 |
11 | 27139821 |
12 | 123799979 |
13 | 564720125 |
14 | 2576001179 |
15 | 11750565389 |
16 | 53600825611 |
17 | 244502996765 |
18 | 1115313334651 |
19 | 5087560678701 |
20 | 23207176728299 |
21 | 105860762282045 |
22 | 482889457961819 |
23 | 2202725765240909 |
[1,5,31,141,659,3005,13739,62669,285931,1304285, 5949691,27139821,123799979,564720125,2576001179, 11750565389,53600825611,244502996765, 1115313334651,5087560678701,23207176728299, 105860762282045,482889457961819,2202725765240909] |