n | a(n) |
---|---|
1 | 0 |
2 | 4 |
3 | 8 |
4 | 16 |
5 | 18 |
6 | 58 |
7 | 87 |
8 | 484 |
9 | 1468 |
10 | 3955 |
11 | 6986 |
12 | 17474 |
13 | 26174 |
14 | 37084 |
15 | 73646 |
16 | 89141 |
17 | 187645 |
18 | 542374 |
19 | 551071 |
20 | 644045 |
21 | 925191 |
22 | 2037817 |
23 | 4576230 |
24 | 13320898 |
25 | 16917960 |
26 | 190435991 |
27 | 230132891 |
28 | 407588556 |
[0,4,8,16,18,58,87,484,1468,3955,6986,17474,26174, 37084,73646,89141,187645,542374,551071,644045, 925191,2037817,4576230,13320898,16917960, 190435991,230132891,407588556] |