n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 10 |
3 | 35 |
4 | 125 |
5 | 450 |
6 | 1625 |
7 | 5875 |
8 | 21250 |
9 | 76875 |
10 | 278125 |
11 | 1006250 |
12 | 3640625 |
13 | 13171875 |
14 | 47656250 |
15 | 172421875 |
16 | 623828125 |
17 | 2257031250 |
18 | 8166015625 |
19 | 29544921875 |
20 | 106894531250 |
21 | 386748046875 |
22 | 1399267578125 |
23 | 5062597656250 |
24 | 18316650390625 |
25 | 66270263671875 |
26 | 239768066406250 |
[1,3,10,35,125,450,1625,5875,21250,76875,278125, 1006250,3640625,13171875,47656250,172421875, 623828125,2257031250,8166015625,29544921875, 106894531250,386748046875,1399267578125, 5062597656250,18316650390625,66270263671875, 239768066406250] |