n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 9 |
4 | 28 |
5 | 78 |
6 | 207 |
7 | 504 |
8 | 1169 |
9 | 2574 |
10 | 5439 |
11 | 11071 |
12 | 21841 |
13 | 41846 |
14 | 78193 |
15 | 142787 |
16 | 255441 |
17 | 448444 |
18 | 773966 |
19 | 1314861 |
20 | 2201731 |
21 | 3637642 |
22 | 5935817 |
23 | 9574284 |
24 | 15277075 |
25 | 24130784 |
26 | 37755124 |
27 | 58545388 |
28 | 90021407 |
29 | 137320211 |
30 | 207895383 |
31 | 312495662 |
[1,3,9,28,78,207,504,1169,2574,5439,11071,21841, 41846,78193,142787,255441,448444,773966,1314861, 2201731,3637642,5935817,9574284,15277075,24130784, 37755124,58545388,90021407,137320211,207895383, 312495662] |