n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 9 |
4 | 23 |
5 | 61 |
6 | 163 |
7 | 433 |
8 | 1151 |
9 | 3061 |
10 | 8139 |
11 | 21641 |
12 | 57543 |
13 | 153005 |
14 | 406835 |
15 | 1081761 |
16 | 2876367 |
17 | 7648165 |
18 | 20336219 |
19 | 54073337 |
20 | 143779223 |
21 | 382304221 |
22 | 1016534339 |
23 | 2702931345 |
24 | 7187005471 |
25 | 19110010965 |
26 | 50812890091 |
27 | 135109802089 |
28 | 359252516199 |
29 | 955240614669 |
[1,1,3,9,23,61,163,433,1151,3061,8139,21641,57543, 153005,406835,1081761,2876367,7648165,20336219, 54073337,143779223,382304221,1016534339, 2702931345,7187005471,19110010965,50812890091, 135109802089,359252516199,955240614669] |