n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 26 |
4 | 1 |
5 | 237 |
6 | 19 |
7 | 2789 |
8 | 336 |
9 | 40270 |
10 | 5981 |
11 | 405 |
12 | 689450 |
13 | 115193 |
14 | 18900 |
15 | 13657756 |
16 | 2459955 |
17 | 659505 |
18 | 307348641 |
19 | 58366045 |
20 | 20330163 |
21 | 1375640 |
22 | 7745565616 |
23 | 1530739594 |
24 | 623758590 |
25 | 99936200 |
26 | 216114310994 |
27 | 44076571672 |
28 | 19795671225 |
29 | 5325116720 |
[1,1,4,26,1,237,19,2789,336,40270,5981,405,689450, 115193,18900,13657756,2459955,659505,307348641, 58366045,20330163,1375640,7745565616,1530739594, 623758590,99936200,216114310994,44076571672, 19795671225,5325116720] |