n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 4 |
3 | 11 |
4 | 26 |
5 | 60 |
6 | 139 |
7 | 323 |
8 | 751 |
9 | 1746 |
10 | 4059 |
11 | 9436 |
12 | 21936 |
13 | 50995 |
14 | 118549 |
15 | 275593 |
16 | 640676 |
17 | 1489391 |
18 | 3462414 |
19 | 8049136 |
20 | 18711971 |
21 | 43500055 |
22 | 101125359 |
23 | 235087938 |
24 | 546513151 |
25 | 1270488936 |
26 | 2953528444 |
27 | 6866120611 |
28 | 15961793881 |
29 | 37106668865 |
[1,2,4,11,26,60,139,323,751,1746,4059,9436,21936, 50995,118549,275593,640676,1489391,3462414, 8049136,18711971,43500055,101125359,235087938, 546513151,1270488936,2953528444,6866120611, 15961793881,37106668865] |