n | a(n) |
---|---|
1 | 120 |
2 | 260 |
3 | 508 |
4 | 940 |
5 | 1734 |
6 | 3126 |
7 | 5690 |
8 | 10276 |
9 | 18758 |
10 | 34230 |
11 | 63068 |
12 | 116594 |
13 | 217310 |
14 | 407026 |
15 | 767450 |
16 | 1454628 |
17 | 2771646 |
18 | 5306940 |
19 | 10202586 |
20 | 19697838 |
21 | 38146332 |
22 | 74135060 |
23 | 144403432 |
24 | 282088738 |
25 | 551970304 |
26 | 1082582606 |
27 | 2125859552 |
28 | 4182450010 |
[120,260,508,940,1734,3126,5690,10276,18758,34230, 63068,116594,217310,407026,767450,1454628,2771646, 5306940,10202586,19697838,38146332,74135060, 144403432,282088738,551970304,1082582606, 2125859552,4182450010] |