n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 10 |
4 | 45 |
5 | 327 |
6 | 2795 |
7 | 37386 |
8 | 708255 |
9 | 18674478 |
10 | 714577926 |
11 | 38756649867 |
12 | 2991760323799 |
13 | 329930606705391 |
14 | 51795338953514297 |
15 | 11590318613952416039 |
16 | 3697221054959107433421 |
17 | 1680594967102679237735428 |
[1,1,4,10,45,327,2795,37386,708255,18674478, 714577926,38756649867,2991760323799, 329930606705391,51795338953514297, 11590318613952416039,3697221054959107433421, 1680594967102679237735428] |