n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 3 |
4 | 6 |
5 | 17 |
6 | 41 |
7 | 104 |
8 | 261 |
9 | 655 |
10 | 1646 |
11 | 4133 |
12 | 10381 |
13 | 26072 |
14 | 65481 |
15 | 164459 |
16 | 413046 |
17 | 1037385 |
18 | 2605441 |
19 | 6543688 |
20 | 16434781 |
21 | 41276727 |
22 | 103668446 |
23 | 260368189 |
24 | 653926981 |
25 | 1642368440 |
26 | 4124885761 |
27 | 10359845043 |
28 | 26019239206 |
29 | 65348545857 |
30 | 164125953561 |
[0,1,3,6,17,41,104,261,655,1646,4133,10381,26072, 65481,164459,413046,1037385,2605441,6543688, 16434781,41276727,103668446,260368189,653926981, 1642368440,4124885761,10359845043,26019239206, 65348545857,164125953561] |