n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 4 |
4 | 10 |
5 | 24 |
6 | 64 |
7 | 166 |
8 | 456 |
9 | 1234 |
10 | 3454 |
11 | 9600 |
12 | 27246 |
13 | 77132 |
14 | 221336 |
15 | 635078 |
16 | 1839000 |
17 | 5331274 |
18 | 15555586 |
19 | 45465412 |
20 | 133517130 |
21 | 392841336 |
22 | 1160033656 |
23 | 3432015726 |
24 | 10182891552 |
25 | 30267591290 |
26 | 90177226062 |
27 | 269117947728 |
28 | 804699330974 |
29 | 2409839825756 |
30 | 7228746487536 |
[1,2,4,10,24,64,166,456,1234,3454,9600,27246, 77132,221336,635078,1839000,5331274,15555586, 45465412,133517130,392841336,1160033656, 3432015726,10182891552,30267591290,90177226062, 269117947728,804699330974,2409839825756, 7228746487536] |