n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 3 |
4 | 6 |
5 | 13 |
6 | 28 |
7 | 39 |
8 | 78 |
9 | 138 |
10 | 207 |
11 | 437 |
12 | 865 |
13 | 1423 |
14 | 2750 |
15 | 4904 |
16 | 8861 |
17 | 16201 |
18 | 33346 |
19 | 58534 |
20 | 111878 |
21 | 208914 |
22 | 397522 |
[0,1,3,6,13,28,39,78,138,207,437,865,1423,2750, 4904,8861,16201,33346,58534,111878,208914,397522] |