n | a(n) |
---|---|
1 | 2 |
2 | 14 |
3 | 66 |
4 | 306 |
5 | 1489 |
6 | 7106 |
7 | 34021 |
8 | 162800 |
9 | 779173 |
10 | 3731019 |
11 | 17861710 |
12 | 85505996 |
13 | 409326530 |
14 | 1959518173 |
15 | 9380666694 |
16 | 44907278950 |
17 | 214980183814 |
18 | 1029152921923 |
19 | 4926762747428 |
20 | 23585417675523 |
21 | 112908198853318 |
22 | 540514482104282 |
[2,14,66,306,1489,7106,34021,162800,779173, 3731019,17861710,85505996,409326530,1959518173, 9380666694,44907278950,214980183814,1029152921923, 4926762747428,23585417675523,112908198853318, 540514482104282] |