n | a(n) |
---|---|
0 | 14 |
1 | 28 |
2 | 76 |
3 | 227 |
4 | 715 |
5 | 2333 |
6 | 7810 |
7 | 26663 |
8 | 92456 |
9 | 324700 |
10 | 1152464 |
11 | 4127294 |
12 | 14895145 |
13 | 54115895 |
14 | 197764350 |
15 | 726473055 |
16 | 2680979820 |
17 | 9934884960 |
18 | 36953107320 |
19 | 137913387450 |
20 | 516295313430 |
21 | 1938260223354 |
[14,28,76,227,715,2333,7810,26663,92456,324700, 1152464,4127294,14895145,54115895,197764350, 726473055,2680979820,9934884960,36953107320, 137913387450,516295313430,1938260223354] |