n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 8 |
5 | 27 |
6 | 97 |
7 | 443 |
8 | 2095 |
9 | 10440 |
10 | 58194 |
11 | 340375 |
12 | 2097933 |
13 | 13847485 |
14 | 95504749 |
15 | 690495874 |
16 | 5245040408 |
17 | 41428115543 |
18 | 340899165549 |
19 | 2917641580783 |
20 | 25857170687507 |
21 | 237421321934176 |
22 | 2253720620740362 |
23 | 22073206655954547 |
24 | 222987346441156585 |
25 | 2319379362420267753 |
[1,1,1,2,8,27,97,443,2095,10440,58194,340375, 2097933,13847485,95504749,690495874,5245040408, 41428115543,340899165549,2917641580783, 25857170687507,237421321934176,2253720620740362, 22073206655954547,222987346441156585, 2319379362420267753] |