n | a(n) |
---|---|
0 | 4 |
1 | 4 |
2 | 6 |
3 | 24 |
4 | 60 |
5 | 144 |
6 | 360 |
7 | 852 |
8 | 1968 |
9 | 4488 |
10 | 10068 |
11 | 22272 |
12 | 48780 |
13 | 105948 |
14 | 228588 |
15 | 490404 |
16 | 1046976 |
17 | 2225964 |
18 | 4715400 |
19 | 9956976 |
20 | 20965212 |
21 | 44031360 |
22 | 92262348 |
23 | 192920784 |
24 | 402629256 |
25 | 838827576 |
26 | 1744784388 |
27 | 3623814864 |
28 | 7516104564 |
[4,4,6,24,60,144,360,852,1968,4488,10068,22272, 48780,105948,228588,490404,1046976,2225964, 4715400,9956976,20965212,44031360,92262348, 192920784,402629256,838827576,1744784388, 3623814864,7516104564] |