n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 34 |
3 | 171 |
4 | 2115 |
5 | 16334 |
6 | 159651 |
7 | 1382259 |
8 | 12727570 |
9 | 113555791 |
10 | 1029574631 |
11 | 9258357134 |
12 | 83605623809 |
13 | 753361554685 |
14 | 6795928721858 |
15 | 61270295494859 |
16 | 552555688390363 |
17 | 4982395765808506 |
18 | 44929655655496287 |
19 | 405145692220245539 |
20 | 3653405881837027898 |
[1,1,34,171,2115,16334,159651,1382259,12727570, 113555791,1029574631,9258357134,83605623809, 753361554685,6795928721858,61270295494859, 552555688390363,4982395765808506, 44929655655496287,405145692220245539, 3653405881837027898] |