n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 5 |
4 | 34 |
5 | 250 |
6 | 2058 |
7 | 18661 |
8 | 185695 |
9 | 2017527 |
10 | 23804069 |
11 | 303413813 |
12 | 4157895295 |
13 | 60989187252 |
14 | 953766105164 |
15 | 15844435971349 |
16 | 278704524938621 |
17 | 5175632136205088 |
18 | 101198102131888304 |
19 | 2078318050691940125 |
20 | 44731639502987747576 |
21 | 1006917859088311808499 |
[1,1,1,5,34,250,2058,18661,185695,2017527, 23804069,303413813,4157895295,60989187252, 953766105164,15844435971349,278704524938621, 5175632136205088,101198102131888304, 2078318050691940125,44731639502987747576, 1006917859088311808499] |