n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 11 |
4 | 45 |
5 | 226 |
6 | 1360 |
7 | 9523 |
8 | 76188 |
9 | 685696 |
10 | 6856969 |
11 | 75426669 |
12 | 905120038 |
13 | 11766560499 |
14 | 164731846995 |
15 | 2470977704933 |
16 | 39535643278936 |
17 | 672105935741920 |
18 | 12097906843354574 |
19 | 229860230023736917 |
20 | 4597204600474738355 |
[1,3,11,45,226,1360,9523,76188,685696,6856969, 75426669,905120038,11766560499,164731846995, 2470977704933,39535643278936,672105935741920, 12097906843354574,229860230023736917, 4597204600474738355] |