n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 3 |
4 | 6 |
5 | 12 |
6 | 21 |
7 | 35 |
8 | 58 |
9 | 106 |
10 | 188 |
11 | 243 |
12 | 493 |
13 | 593 |
14 | 1062 |
15 | 3275 |
16 | 5507 |
17 | 5803 |
18 | 12426 |
19 | 12915 |
20 | 42410 |
21 | 131772 |
22 | 167587 |
23 | 168841 |
24 | 428012 |
25 | 839367 |
26 | 1015501 |
27 | 1968161 |
28 | 5787286 |
[0,1,3,6,12,21,35,58,106,188,243,493,593,1062, 3275,5507,5803,12426,12915,42410,131772,167587, 168841,428012,839367,1015501,1968161,5787286] |