n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 6 |
4 | 16 |
5 | 38 |
6 | 100 |
7 | 256 |
8 | 681 |
9 | 1805 |
10 | 4867 |
11 | 13162 |
12 | 35925 |
13 | 98469 |
14 | 271511 |
15 | 751656 |
16 | 2089963 |
17 | 5831451 |
18 | 16326785 |
19 | 45847770 |
20 | 129108926 |
21 | 364498596 |
22 | 1031486590 |
23 | 2925337352 |
24 | 8313215743 |
25 | 23668977163 |
26 | 67507773621 |
27 | 192859753310 |
28 | 551821400008 |
29 | 1581188102590 |
[1,1,3,6,16,38,100,256,681,1805,4867,13162,35925, 98469,271511,751656,2089963,5831451,16326785, 45847770,129108926,364498596,1031486590, 2925337352,8313215743,23668977163,67507773621, 192859753310,551821400008,1581188102590] |