n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 15 |
3 | 75 |
4 | 325 |
5 | 1625 |
6 | 7875 |
7 | 39375 |
8 | 195625 |
9 | 978125 |
10 | 4884375 |
11 | 24421875 |
12 | 122078125 |
13 | 610390625 |
14 | 3051796875 |
15 | 15258984375 |
16 | 76294140625 |
17 | 381470703125 |
18 | 1907349609375 |
19 | 9536748046875 |
20 | 47683720703125 |
[1,5,15,75,325,1625,7875,39375,195625,978125, 4884375,24421875,122078125,610390625,3051796875, 15258984375,76294140625,381470703125, 1907349609375,9536748046875,47683720703125] |