n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 25 |
4 | 157 |
5 | 1265 |
6 | 12661 |
7 | 151945 |
8 | 2127245 |
9 | 34035937 |
10 | 612646885 |
11 | 12252937721 |
12 | 269564629885 |
13 | 6469551117265 |
14 | 168208329048917 |
15 | 4709833213369705 |
16 | 141294996401091181 |
17 | 4521439884834917825 |
18 | 153728956084387206085 |
19 | 5534242419037939419097 |
20 | 210301211923441697925725 |
[1,1,5,25,157,1265,12661,151945,2127245,34035937, 612646885,12252937721,269564629885,6469551117265, 168208329048917,4709833213369705, 141294996401091181,4521439884834917825, 153728956084387206085,5534242419037939419097, 210301211923441697925725] |