n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 36 |
3 | 286 |
4 | 2380 |
5 | 20349 |
6 | 177100 |
7 | 1560780 |
8 | 13884156 |
9 | 124403620 |
10 | 1121099408 |
11 | 10150595910 |
12 | 92263734836 |
13 | 841392966470 |
14 | 7694644696200 |
15 | 70539987842520 |
16 | 648045936942300 |
17 | 5964720367660956 |
18 | 54991682779774384 |
19 | 507749884105448600 |
20 | 4694436188839116720 |
[1,5,36,286,2380,20349,177100,1560780,13884156, 124403620,1121099408,10150595910,92263734836, 841392966470,7694644696200,70539987842520, 648045936942300,5964720367660956, 54991682779774384,507749884105448600, 4694436188839116720] |