n | a(n) |
---|---|
1 | 2 |
2 | 11 |
3 | 55 |
4 | 278 |
5 | 1392 |
6 | 6961 |
7 | 34805 |
8 | 174028 |
9 | 870142 |
10 | 4350711 |
11 | 21753555 |
12 | 108767778 |
13 | 543838892 |
14 | 2719194461 |
15 | 13595972305 |
16 | 67979861528 |
17 | 339899307642 |
18 | 1699496538211 |
19 | 8497482691055 |
20 | 42487413455278 |
21 | 212437067276392 |
22 | 1062185336381961 |
[2,11,55,278,1392,6961,34805,174028,870142, 4350711,21753555,108767778,543838892,2719194461, 13595972305,67979861528,339899307642, 1699496538211,8497482691055,42487413455278, 212437067276392,1062185336381961] |