n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 9 |
3 | 27 |
4 | 36 |
5 | 72 |
6 | 132 |
7 | 240 |
8 | 444 |
9 | 816 |
10 | 1500 |
11 | 2760 |
12 | 5076 |
13 | 9336 |
14 | 17172 |
15 | 31584 |
16 | 58092 |
17 | 106848 |
18 | 196524 |
19 | 361464 |
20 | 664836 |
21 | 1222824 |
22 | 2249124 |
23 | 4136784 |
24 | 7608732 |
25 | 13994640 |
26 | 25740156 |
27 | 47343528 |
28 | 87078324 |
29 | 160162008 |
30 | 294583860 |
31 | 541824192 |
32 | 996570060 |
33 | 1832978112 |
[1,3,9,27,36,72,132,240,444,816,1500,2760,5076, 9336,17172,31584,58092,106848,196524,361464, 664836,1222824,2249124,4136784,7608732,13994640, 25740156,47343528,87078324,160162008,294583860, 541824192,996570060,1832978112] |