n | a(n) |
---|---|
0 | 2 |
1 | 5 |
2 | 12 |
3 | 28 |
4 | 65 |
5 | 150 |
6 | 346 |
7 | 797 |
8 | 1836 |
9 | 4228 |
10 | 9737 |
11 | 22422 |
12 | 51634 |
13 | 118901 |
14 | 273804 |
15 | 630508 |
16 | 1451921 |
17 | 3343446 |
18 | 7699210 |
19 | 17729549 |
20 | 40827180 |
21 | 94015828 |
22 | 216497369 |
23 | 498544854 |
24 | 1148036962 |
25 | 2643671525 |
26 | 6087782412 |
27 | 14018796988 |
28 | 32282144225 |
29 | 74338535190 |
30 | 171184967866 |
[2,5,12,28,65,150,346,797,1836,4228,9737,22422, 51634,118901,273804,630508,1451921,3343446, 7699210,17729549,40827180,94015828,216497369, 498544854,1148036962,2643671525,6087782412, 14018796988,32282144225,74338535190,171184967866] |