n | a(n) |
---|---|
1 | 4 |
2 | 32 |
3 | 228 |
4 | 1637 |
5 | 11814 |
6 | 85268 |
7 | 615589 |
8 | 4444226 |
9 | 32085336 |
10 | 231641898 |
11 | 1672352613 |
12 | 12073650477 |
13 | 87166448968 |
14 | 629303444781 |
15 | 4543294244531 |
16 | 32800587324576 |
17 | 236805822155030 |
18 | 1709633941974433 |
19 | 12342805548255732 |
20 | 89109630466361141 |
[4,32,228,1637,11814,85268,615589,4444226, 32085336,231641898,1672352613,12073650477, 87166448968,629303444781,4543294244531, 32800587324576,236805822155030,1709633941974433, 12342805548255732,89109630466361141] |