n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 4 |
4 | 9 |
5 | 20 |
6 | 48 |
7 | 117 |
8 | 294 |
9 | 748 |
10 | 1925 |
11 | 4984 |
12 | 12960 |
13 | 33785 |
14 | 88218 |
15 | 230580 |
16 | 603057 |
17 | 1577836 |
18 | 4129232 |
19 | 10807885 |
20 | 28291230 |
21 | 74060636 |
22 | 193882317 |
23 | 507572784 |
24 | 1328814144 |
25 | 3478834225 |
26 | 9107631218 |
27 | 23843966692 |
28 | 62424118809 |
29 | 163428146948 |
30 | 427859929200 |
31 | 1120151005029 |
32 | 2932592057430 |
[1,2,4,9,20,48,117,294,748,1925,4984,12960,33785, 88218,230580,603057,1577836,4129232,10807885, 28291230,74060636,193882317,507572784,1328814144, 3478834225,9107631218,23843966692,62424118809, 163428146948,427859929200,1120151005029, 2932592057430] |