n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 3 |
4 | 6 |
5 | 22 |
6 | 33 |
7 | 66 |
8 | 750 |
9 | 27798250 |
10 | 41697375 |
11 | 76745867 |
12 | 83394750 |
13 | 153491734 |
14 | 207656250 |
15 | 230237601 |
16 | 460475202 |
17 | 917342250 |
18 | 969062500 |
19 | 2907187500 |
20 | 4528006153 |
21 | 5952812500 |
22 | 9056012306 |
23 | 13584018459 |
24 | 17858437500 |
25 | 27168036918 |
26 | 31979062500 |
27 | 57559400250 |
[1,2,3,6,22,33,66,750,27798250,41697375,76745867, 83394750,153491734,207656250,230237601,460475202, 917342250,969062500,2907187500,4528006153, 5952812500,9056012306,13584018459,17858437500, 27168036918,31979062500,57559400250] |