n | a(n) |
---|---|
1 | 4 |
2 | 14 |
3 | 46 |
4 | 141 |
5 | 427 |
6 | 1282 |
7 | 3849 |
8 | 11553 |
9 | 34663 |
10 | 104001 |
11 | 312005 |
12 | 936017 |
13 | 2808053 |
14 | 8424161 |
15 | 25272487 |
16 | 75817463 |
17 | 227452391 |
18 | 682357183 |
19 | 2047071551 |
20 | 6141214658 |
21 | 18423643982 |
22 | 55270931959 |
23 | 165812795887 |
24 | 497438387665 |
25 | 1492315162999 |
[4,14,46,141,427,1282,3849,11553,34663,104001, 312005,936017,2808053,8424161,25272487,75817463, 227452391,682357183,2047071551,6141214658, 18423643982,55270931959,165812795887,497438387665, 1492315162999] |