n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 4 |
3 | 8 |
4 | 15 |
5 | 30 |
6 | 56 |
7 | 112 |
8 | 210 |
9 | 420 |
10 | 792 |
11 | 1584 |
12 | 3003 |
13 | 6006 |
14 | 11440 |
15 | 22880 |
16 | 43758 |
17 | 87516 |
18 | 167960 |
19 | 335920 |
20 | 646646 |
21 | 1293292 |
22 | 2496144 |
23 | 4992288 |
24 | 9657700 |
25 | 19315400 |
26 | 37442160 |
27 | 74884320 |
28 | 145422675 |
29 | 290845350 |
30 | 565722720 |
31 | 1131445440 |
32 | 2203961430 |
33 | 4407922860 |
[1,2,4,8,15,30,56,112,210,420,792,1584,3003,6006, 11440,22880,43758,87516,167960,335920,646646, 1293292,2496144,4992288,9657700,19315400,37442160, 74884320,145422675,290845350,565722720,1131445440, 2203961430,4407922860] |