n | a(n) |
---|---|
0 | -1 |
1 | 1 |
2 | 3 |
3 | 11 |
4 | 31 |
5 | 87 |
6 | 239 |
7 | 655 |
8 | 1791 |
9 | 4895 |
10 | 13375 |
11 | 36543 |
12 | 99839 |
13 | 272767 |
14 | 745215 |
15 | 2035967 |
16 | 5562367 |
17 | 15196671 |
18 | 41518079 |
19 | 113429503 |
20 | 309895167 |
21 | 846649343 |
22 | 2313089023 |
23 | 6319476735 |
24 | 17265131519 |
25 | 47169216511 |
26 | 128868696063 |
27 | 352075825151 |
28 | 961889042431 |
29 | 2627929735167 |
30 | 7179637555199 |
[-1,1,3,11,31,87,239,655,1791,4895,13375,36543, 99839,272767,745215,2035967,5562367,15196671, 41518079,113429503,309895167,846649343,2313089023, 6319476735,17265131519,47169216511,128868696063, 352075825151,961889042431,2627929735167, 7179637555199] |