n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 1 |
4 | 1 |
5 | 2 |
6 | 4 |
7 | 4 |
8 | 7 |
9 | 13 |
10 | 24 |
11 | 24 |
12 | 44 |
13 | 84 |
14 | 161 |
15 | 309 |
16 | 309 |
17 | 594 |
18 | 1164 |
19 | 2284 |
20 | 4484 |
21 | 8807 |
22 | 8807 |
23 | 17305 |
24 | 34301 |
25 | 68008 |
26 | 134852 |
27 | 267420 |
28 | 530356 |
29 | 530356 |
30 | 1051905 |
31 | 2095003 |
32 | 4172701 |
33 | 8311101 |
34 | 16554194 |
35 | 32973536 |
36 | 65679652 |
37 | 65679652 |
38 | 130828948 |
39 | 261127540 |
40 | 521203175 |
41 | 1040311347 |
42 | 2076449993 |
[0,0,1,1,2,4,4,7,13,24,24,44,84,161,309,309,594, 1164,2284,4484,8807,8807,17305,34301,68008,134852, 267420,530356,530356,1051905,2095003,4172701, 8311101,16554194,32973536,65679652,65679652, 130828948,261127540,521203175,1040311347, 2076449993] |