n | a(n) |
---|---|
1 | 1 |
2 | 9 |
3 | 51 |
4 | 230 |
5 | 863 |
6 | 2864 |
7 | 8609 |
8 | 23883 |
9 | 61883 |
10 | 151214 |
11 | 350929 |
12 | 778113 |
13 | 1656265 |
14 | 3398229 |
15 | 6743791 |
16 | 12983181 |
17 | 24311044 |
18 | 44377016 |
19 | 79124476 |
20 | 138048542 |
21 | 236050912 |
22 | 396137492 |
23 | 653285736 |
24 | 1059923072 |
25 | 1693592112 |
26 | 2667563553 |
27 | 4145373780 |
28 | 6360553548 |
29 | 9643151582 |
[1,9,51,230,863,2864,8609,23883,61883,151214, 350929,778113,1656265,3398229,6743791,12983181, 24311044,44377016,79124476,138048542,236050912, 396137492,653285736,1059923072,1693592112, 2667563553,4145373780,6360553548,9643151582] |