n | a(n) |
---|---|
2 | 1 |
3 | 13 |
4 | 221 |
5 | 3485 |
6 | 55965 |
7 | 894621 |
8 | 14317213 |
9 | 229062301 |
10 | 3665049245 |
11 | 58640578205 |
12 | 938250090141 |
13 | 15011998086813 |
14 | 240191982810781 |
15 | 3843071671285405 |
16 | 61489146955314845 |
17 | 983826350426044061 |
18 | 15741221610252678813 |
[1,13,221,3485,55965,894621,14317213,229062301, 3665049245,58640578205,938250090141, 15011998086813,240191982810781,3843071671285405, 61489146955314845,983826350426044061, 15741221610252678813] |