n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 9 |
3 | 28 |
4 | 69 |
5 | 174 |
6 | 413 |
7 | 933 |
8 | 2046 |
9 | 4391 |
10 | 9168 |
11 | 18675 |
12 | 37522 |
13 | 73725 |
14 | 142893 |
15 | 273159 |
16 | 514512 |
17 | 957666 |
18 | 1762837 |
19 | 3208884 |
20 | 5783727 |
21 | 10330732 |
22 | 18280590 |
23 | 32086827 |
24 | 55880614 |
25 | 96579240 |
26 | 165733335 |
27 | 282513246 |
28 | 478419366 |
29 | 805196022 |
30 | 1347288750 |
31 | 2241377166 |
32 | 3708721887 |
[1,3,9,28,69,174,413,933,2046,4391,9168,18675, 37522,73725,142893,273159,514512,957666,1762837, 3208884,5783727,10330732,18280590,32086827, 55880614,96579240,165733335,282513246,478419366, 805196022,1347288750,2241377166,3708721887] |