n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 6 |
4 | 9 |
5 | 26 |
6 | 74 |
7 | 163 |
8 | 535 |
9 | 1735 |
10 | 4960 |
11 | 15935 |
12 | 51598 |
13 | 159682 |
14 | 507871 |
15 | 1626269 |
16 | 5134567 |
17 | 16304686 |
18 | 51939793 |
19 | 164789906 |
20 | 523362014 |
21 | 1664172607 |
22 | 5285951875 |
23 | 16791701819 |
24 | 53363480620 |
25 | 169541243631 |
26 | 538639046154 |
27 | 1711496670766 |
[1,3,6,9,26,74,163,535,1735,4960,15935,51598, 159682,507871,1626269,5134567,16304686,51939793, 164789906,523362014,1664172607,5285951875, 16791701819,53363480620,169541243631,538639046154, 1711496670766] |