n | a(n) |
---|---|
0 | 1 |
1 | 21 |
2 | 207 |
3 | 1298 |
4 | 6052 |
5 | 22824 |
6 | 73383 |
7 | 208269 |
8 | 534687 |
9 | 1264026 |
10 | 2788834 |
11 | 5802288 |
12 | 11477240 |
13 | 21726484 |
14 | 39571482 |
15 | 69652946 |
16 | 118924069 |
17 | 197575191 |
18 | 320248137 |
19 | 507608530 |
20 | 788356140 |
21 | 1201765708 |
22 | 1800865001 |
23 | 2656371783 |
24 | 3861528515 |
[1,21,207,1298,6052,22824,73383,208269,534687, 1264026,2788834,5802288,11477240,21726484, 39571482,69652946,118924069,197575191,320248137, 507608530,788356140,1201765708,1800865001, 2656371783,3861528515] |