n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 1 |
6 | 6 |
7 | 16 |
8 | 41 |
9 | 106 |
10 | 806 |
11 | 2311 |
12 | 6126 |
13 | 16066 |
14 | 122401 |
15 | 351136 |
16 | 931006 |
17 | 2441881 |
18 | 18604041 |
19 | 53370241 |
20 | 141506681 |
21 | 371149801 |
22 | 2827691726 |
23 | 8111925376 |
24 | 21508084401 |
25 | 56412327826 |
26 | 429790538206 |
27 | 1232959286791 |
28 | 3269087322166 |
29 | 8574302679706 |
30 | 65325334115481 |
[1,1,1,1,1,6,16,41,106,806,2311,6126,16066,122401, 351136,931006,2441881,18604041,53370241,141506681, 371149801,2827691726,8111925376,21508084401, 56412327826,429790538206,1232959286791, 3269087322166,8574302679706,65325334115481] |