n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 3 |
3 | 14 |
4 | 82 |
5 | 579 |
6 | 4741 |
7 | 43977 |
8 | 454283 |
9 | 5159441 |
10 | 63782411 |
11 | 851368766 |
12 | 12188927818 |
13 | 186132043831 |
14 | 3017325884473 |
15 | 51712139570022 |
16 | 933654684562038 |
17 | 17702959714232057 |
18 | 351535449888420187 |
19 | 7292626296788508624 |
20 | 157698798590301690864 |
21 | 3547597554377118966359 |
[0,1,3,14,82,579,4741,43977,454283,5159441, 63782411,851368766,12188927818,186132043831, 3017325884473,51712139570022,933654684562038, 17702959714232057,351535449888420187, 7292626296788508624,157698798590301690864, 3547597554377118966359] |