n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 1 |
6 | 7 |
7 | 41 |
8 | 209 |
9 | 999 |
10 | 4603 |
11 | 20763 |
12 | 92601 |
13 | 410279 |
14 | 1811327 |
15 | 7982401 |
16 | 35151819 |
17 | 154779159 |
18 | 681698115 |
19 | 3003887511 |
20 | 13244742603 |
21 | 58438985851 |
22 | 258033686801 |
23 | 1140171589651 |
24 | 5041775026879 |
25 | 22310625017943 |
26 | 98798039343423 |
[1,1,1,1,1,7,41,209,999,4603,20763,92601,410279, 1811327,7982401,35151819,154779159,681698115, 3003887511,13244742603,58438985851,258033686801, 1140171589651,5041775026879,22310625017943, 98798039343423] |