n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 9 |
4 | 26 |
5 | 106 |
6 | 191 |
7 | 954 |
8 | 2427 |
9 | 8404 |
10 | 15945 |
11 | 111952 |
12 | 141117 |
13 | 1176623 |
14 | 2270566 |
15 | 4477947 |
16 | 10345290 |
17 | 104257447 |
18 | 145407966 |
19 | 1633452518 |
20 | 2517488363 |
21 | 5024167821 |
22 | 9148333241 |
23 | 120260250853 |
[1,3,9,26,106,191,954,2427,8404,15945,111952, 141117,1176623,2270566,4477947,10345290,104257447, 145407966,1633452518,2517488363,5024167821, 9148333241,120260250853] |