n | a(n) |
---|---|
1 | 4 |
2 | 14 |
3 | 45 |
4 | 133 |
5 | 419 |
6 | 1382 |
7 | 4495 |
8 | 14754 |
9 | 48525 |
10 | 159584 |
11 | 524981 |
12 | 1727658 |
13 | 5685321 |
14 | 18710300 |
15 | 61576790 |
16 | 202655046 |
17 | 666960573 |
18 | 2195053580 |
19 | 7224214965 |
20 | 23775889227 |
21 | 78249787781 |
22 | 257531127865 |
23 | 847571571085 |
24 | 2789478970713 |
25 | 9180573908293 |
[4,14,45,133,419,1382,4495,14754,48525,159584, 524981,1727658,5685321,18710300,61576790, 202655046,666960573,2195053580,7224214965, 23775889227,78249787781,257531127865,847571571085, 2789478970713,9180573908293] |