n | a(n) |
---|---|
2 | 1 |
3 | 3 |
4 | 8 |
5 | 20 |
6 | 47 |
7 | 106 |
8 | 237 |
9 | 522 |
10 | 1146 |
11 | 2485 |
12 | 5406 |
13 | 11644 |
14 | 25157 |
15 | 53964 |
16 | 116003 |
17 | 247987 |
18 | 530999 |
19 | 1131889 |
20 | 2415431 |
21 | 5135838 |
22 | 10927816 |
23 | 23182209 |
24 | 49199697 |
25 | 104154808 |
26 | 220543306 |
27 | 465996956 |
28 | 984704338 |
29 | 2076988457 |
30 | 4380764354 |
31 | 9225209588 |
32 | 19424813915 |
33 | 40844509107 |
[1,3,8,20,47,106,237,522,1146,2485,5406,11644, 25157,53964,116003,247987,530999,1131889,2415431, 5135838,10927816,23182209,49199697,104154808, 220543306,465996956,984704338,2076988457, 4380764354,9225209588,19424813915,40844509107] |