n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 11 |
4 | 26 |
5 | 59 |
6 | 137 |
7 | 312 |
8 | 719 |
9 | 1651 |
10 | 3816 |
11 | 8757 |
12 | 20202 |
13 | 46440 |
14 | 106957 |
15 | 245989 |
16 | 566561 |
17 | 1303968 |
18 | 3002247 |
19 | 6910122 |
20 | 15909143 |
[1,2,5,11,26,59,137,312,719,1651,3816,8757,20202, 46440,106957,245989,566561,1303968,3002247, 6910122,15909143] |