n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 24 |
3 | 116 |
4 | 560 |
5 | 2704 |
6 | 13056 |
7 | 63040 |
8 | 304384 |
9 | 1469696 |
10 | 7096320 |
11 | 34264064 |
12 | 165441536 |
13 | 798822400 |
14 | 3857055744 |
15 | 18623512576 |
16 | 89922273280 |
17 | 434183143424 |
18 | 2096421666816 |
19 | 10122419240960 |
20 | 48875363631104 |
21 | 235991131488256 |
22 | 1139465980477440 |
23 | 5501828447862784 |
[1,5,24,116,560,2704,13056,63040,304384,1469696, 7096320,34264064,165441536,798822400,3857055744, 18623512576,89922273280,434183143424, 2096421666816,10122419240960,48875363631104, 235991131488256,1139465980477440,5501828447862784] |