n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 2 |
6 | 4 |
7 | 8 |
8 | 16 |
9 | 33 |
10 | 73 |
11 | 177 |
12 | 467 |
13 | 1309 |
14 | 3813 |
15 | 11409 |
16 | 34999 |
17 | 110510 |
18 | 361194 |
19 | 1226930 |
20 | 4334048 |
21 | 15877297 |
22 | 60049447 |
23 | 233426007 |
24 | 929616461 |
25 | 3786970033 |
26 | 15777120457 |
27 | 67260334185 |
28 | 293617319221 |
29 | 1312868943154 |
30 | 6010792180952 |
[1,1,1,1,2,4,8,16,33,73,177,467,1309,3813,11409, 34999,110510,361194,1226930,4334048,15877297, 60049447,233426007,929616461,3786970033, 15777120457,67260334185,293617319221, 1312868943154,6010792180952] |