n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 9 |
4 | 46 |
5 | 343 |
6 | 3025 |
7 | 32811 |
8 | 417348 |
9 | 6106921 |
10 | 102307571 |
11 | 1918139824 |
12 | 40190540565 |
13 | 928661958828 |
14 | 23551552524966 |
15 | 651213150740841 |
16 | 19523328447786346 |
17 | 631923020784069573 |
18 | 21984209405892842663 |
19 | 819109566359501449734 |
20 | 32576039720255480451008 |
21 | 1378639634715738629523321 |
[1,1,2,9,46,343,3025,32811,417348,6106921, 102307571,1918139824,40190540565,928661958828, 23551552524966,651213150740841,19523328447786346, 631923020784069573,21984209405892842663, 819109566359501449734,32576039720255480451008, 1378639634715738629523321] |