n | a(n) |
---|---|
1 | 5 |
2 | 50 |
3 | 278 |
4 | 1351 |
5 | 6501 |
6 | 31061 |
7 | 147954 |
8 | 705180 |
9 | 3364845 |
10 | 16066957 |
11 | 76746541 |
12 | 366661633 |
13 | 1751917453 |
14 | 8371075480 |
15 | 39999735173 |
16 | 191133225006 |
17 | 913306286525 |
18 | 4364124497569 |
19 | 20853452368747 |
20 | 99645765475503 |
21 | 476145569567504 |
[5,50,278,1351,6501,31061,147954,705180,3364845, 16066957,76746541,366661633,1751917453,8371075480, 39999735173,191133225006,913306286525, 4364124497569,20853452368747,99645765475503, 476145569567504] |