n | a(n) |
---|---|
1 | 9 |
2 | 21 |
3 | 48 |
4 | 111 |
5 | 255 |
6 | 588 |
7 | 1353 |
8 | 3117 |
9 | 7176 |
10 | 16527 |
11 | 38055 |
12 | 87636 |
13 | 201801 |
14 | 464709 |
15 | 1070112 |
16 | 2464239 |
17 | 5674575 |
18 | 13067292 |
19 | 30091017 |
20 | 69292893 |
21 | 159565944 |
22 | 367444623 |
23 | 846142455 |
24 | 1948476324 |
25 | 4486903689 |
26 | 10332332661 |
27 | 23793043728 |
28 | 54790041711 |
[9,21,48,111,255,588,1353,3117,7176,16527,38055, 87636,201801,464709,1070112,2464239,5674575, 13067292,30091017,69292893,159565944,367444623, 846142455,1948476324,4486903689,10332332661, 23793043728,54790041711] |