n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 4 |
3 | 9 |
4 | 20 |
5 | 42 |
6 | 89 |
7 | 189 |
8 | 400 |
9 | 845 |
10 | 1788 |
11 | 3782 |
12 | 8000 |
13 | 16917 |
14 | 35777 |
15 | 75659 |
16 | 160000 |
17 | 338358 |
18 | 715541 |
19 | 1513186 |
20 | 3200000 |
21 | 6767176 |
22 | 14310835 |
23 | 30263731 |
24 | 64000000 |
25 | 135343521 |
26 | 286216701 |
27 | 605274629 |
28 | 1280000000 |
29 | 2706870434 |
30 | 5724334022 |
31 | 12105492595 |
32 | 25600000000 |
[1,2,4,9,20,42,89,189,400,845,1788,3782,8000, 16917,35777,75659,160000,338358,715541,1513186, 3200000,6767176,14310835,30263731,64000000, 135343521,286216701,605274629,1280000000, 2706870434,5724334022,12105492595,25600000000] |