n | a(n) |
---|---|
0 | 3 |
1 | 6 |
2 | 13 |
3 | 31 |
4 | 78 |
5 | 201 |
6 | 523 |
7 | 1366 |
8 | 3573 |
9 | 9351 |
10 | 24478 |
11 | 64081 |
12 | 167763 |
13 | 439206 |
14 | 1149853 |
15 | 3010351 |
16 | 7881198 |
17 | 20633241 |
18 | 54018523 |
19 | 141422326 |
20 | 370248453 |
21 | 969323031 |
22 | 2537720638 |
23 | 6643838881 |
24 | 17393796003 |
25 | 45537549126 |
26 | 119218851373 |
27 | 312119004991 |
28 | 817138163598 |
[3,6,13,31,78,201,523,1366,3573,9351,24478,64081, 167763,439206,1149853,3010351,7881198,20633241, 54018523,141422326,370248453,969323031,2537720638, 6643838881,17393796003,45537549126,119218851373, 312119004991,817138163598] |