n | a(n) |
---|---|
0 | 2 |
1 | 3 |
2 | 6 |
3 | 14 |
4 | 35 |
5 | 116 |
6 | 448 |
7 | 1980 |
8 | 10098 |
9 | 57840 |
10 | 368201 |
11 | 2578384 |
12 | 19697486 |
13 | 163017000 |
14 | 1452918806 |
15 | 13874348700 |
16 | 141322966623 |
17 | 1529472867448 |
18 | 17526468199148 |
19 | 211996227034964 |
20 | 2699219798770446 |
21 | 36085910558435148 |
22 | 505406091697374877 |
[2,3,6,14,35,116,448,1980,10098,57840,368201, 2578384,19697486,163017000,1452918806,13874348700, 141322966623,1529472867448,17526468199148, 211996227034964,2699219798770446, 36085910558435148,505406091697374877] |