n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 9 |
4 | 31 |
5 | 117 |
6 | 479 |
7 | 2061 |
8 | 9183 |
9 | 42021 |
10 | 196239 |
11 | 931457 |
12 | 4480531 |
13 | 21793257 |
14 | 107004891 |
15 | 529656765 |
16 | 2640160039 |
17 | 13241371629 |
18 | 66771501151 |
19 | 338333343825 |
20 | 1721768732423 |
21 | 8796192611917 |
22 | 45096680384635 |
23 | 231945566136129 |
24 | 1196461977291959 |
25 | 6188390166782849 |
[1,3,9,31,117,479,2061,9183,42021,196239,931457, 4480531,21793257,107004891,529656765,2640160039, 13241371629,66771501151,338333343825, 1721768732423,8796192611917,45096680384635, 231945566136129,1196461977291959,6188390166782849] |