n | a(n) |
---|---|
0 | 3 |
1 | 16 |
2 | 90 |
3 | 532 |
4 | 3282 |
5 | 20956 |
6 | 137370 |
7 | 918052 |
8 | 6220962 |
9 | 42568876 |
10 | 293289450 |
11 | 2030349172 |
12 | 14102205042 |
13 | 98176822396 |
14 | 684595023930 |
15 | 4779152829892 |
16 | 33389813427522 |
17 | 233410633309516 |
18 | 1632297014652810 |
19 | 11418243549608212 |
[3,16,90,532,3282,20956,137370,918052,6220962, 42568876,293289450,2030349172,14102205042, 98176822396,684595023930,4779152829892, 33389813427522,233410633309516,1632297014652810, 11418243549608212] |