n | a(n) |
---|---|
1 | 4 |
2 | 16 |
3 | 58 |
4 | 214 |
5 | 788 |
6 | 2902 |
7 | 10686 |
8 | 39350 |
9 | 144902 |
10 | 533586 |
11 | 1964872 |
12 | 7235426 |
13 | 26643664 |
14 | 98112376 |
15 | 361288084 |
16 | 1330403818 |
17 | 4899066416 |
18 | 18040275760 |
19 | 66431340558 |
20 | 244626139148 |
21 | 900808977386 |
22 | 3317130444708 |
23 | 12214969725478 |
24 | 44980288801238 |
[4,16,58,214,788,2902,10686,39350,144902,533586, 1964872,7235426,26643664,98112376,361288084, 1330403818,4899066416,18040275760,66431340558, 244626139148,900808977386,3317130444708, 12214969725478,44980288801238] |