n | a(n) |
---|---|
1 | 2 |
2 | 10 |
3 | 50 |
4 | 210 |
5 | 914 |
6 | 3666 |
7 | 14738 |
8 | 59026 |
9 | 236690 |
10 | 946834 |
11 | 3787922 |
12 | 15151762 |
13 | 60607634 |
14 | 242437266 |
15 | 969821330 |
16 | 3879357586 |
17 | 15518026898 |
18 | 62072179858 |
19 | 248289315986 |
20 | 993157336210 |
21 | 3972629941394 |
22 | 15890526653586 |
23 | 63562180611218 |
24 | 254248729332882 |
25 | 1016994991328402 |
[2,10,50,210,914,3666,14738,59026,236690,946834, 3787922,15151762,60607634,242437266,969821330, 3879357586,15518026898,62072179858,248289315986, 993157336210,3972629941394,15890526653586, 63562180611218,254248729332882,1016994991328402] |