n | a(n) |
---|---|
1 | 13 |
2 | 13 |
3 | 67 |
4 | 128 |
5 | 410 |
6 | 1221 |
7 | 3453 |
8 | 10223 |
9 | 30247 |
10 | 88071 |
11 | 257997 |
12 | 758575 |
13 | 2222443 |
14 | 6510901 |
15 | 19099863 |
16 | 56003627 |
17 | 164158635 |
18 | 481322825 |
19 | 1411283805 |
20 | 4137560893 |
21 | 12130815503 |
22 | 35567022201 |
23 | 104278542849 |
24 | 305732562651 |
25 | 896380484697 |
[13,13,67,128,410,1221,3453,10223,30247,88071, 257997,758575,2222443,6510901,19099863,56003627, 164158635,481322825,1411283805,4137560893, 12130815503,35567022201,104278542849,305732562651, 896380484697] |