n | a(n) |
---|---|
1 | 3 |
2 | 9 |
3 | 25 |
4 | 69 |
5 | 190 |
6 | 523 |
7 | 1440 |
8 | 3965 |
9 | 10918 |
10 | 30064 |
11 | 82785 |
12 | 227959 |
13 | 627714 |
14 | 1728490 |
15 | 4759616 |
16 | 13106205 |
17 | 36089594 |
18 | 99377264 |
19 | 273647872 |
20 | 753524044 |
21 | 2074923809 |
22 | 5713565277 |
23 | 15733025007 |
24 | 43322875275 |
25 | 119295019315 |
26 | 328493931740 |
[3,9,25,69,190,523,1440,3965,10918,30064,82785, 227959,627714,1728490,4759616,13106205,36089594, 99377264,273647872,753524044,2074923809, 5713565277,15733025007,43322875275,119295019315, 328493931740] |