n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 4 |
3 | 8 |
4 | 14 |
5 | 30 |
6 | 50 |
7 | 112 |
8 | 182 |
9 | 420 |
10 | 672 |
11 | 1584 |
12 | 2508 |
13 | 6006 |
14 | 9438 |
15 | 22880 |
16 | 35750 |
17 | 87516 |
18 | 136136 |
19 | 335920 |
20 | 520676 |
21 | 1293292 |
22 | 1998724 |
23 | 4992288 |
24 | 7696444 |
25 | 19315400 |
26 | 29716000 |
27 | 74884320 |
28 | 115000920 |
29 | 290845350 |
30 | 445962870 |
[1,2,4,8,14,30,50,112,182,420,672,1584,2508,6006, 9438,22880,35750,87516,136136,335920,520676, 1293292,1998724,4992288,7696444,19315400,29716000, 74884320,115000920,290845350,445962870] |