n | a(n) |
---|---|
0 | 0 |
1 | 3 |
2 | 10 |
3 | 27 |
4 | 62 |
5 | 135 |
6 | 282 |
7 | 589 |
8 | 1204 |
9 | 2437 |
10 | 4904 |
11 | 9847 |
12 | 19734 |
13 | 39511 |
14 | 79066 |
15 | 158187 |
16 | 316430 |
17 | 632919 |
18 | 1265898 |
19 | 2531865 |
20 | 5063800 |
21 | 10127673 |
22 | 20255420 |
23 | 40510931 |
[0,3,10,27,62,135,282,589,1204,2437,4904,9847, 19734,39511,79066,158187,316430,632919,1265898, 2531865,5063800,10127673,20255420,40510931] |