n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 2 |
3 | 4 |
4 | 10 |
5 | 20 |
6 | 44 |
7 | 88 |
8 | 182 |
9 | 364 |
10 | 740 |
11 | 1480 |
12 | 2980 |
13 | 5960 |
14 | 11960 |
15 | 23920 |
16 | 47914 |
17 | 95828 |
18 | 191804 |
19 | 383608 |
20 | 767500 |
21 | 1535000 |
22 | 3070568 |
23 | 6141136 |
24 | 12283388 |
25 | 24566776 |
26 | 49135784 |
27 | 98271568 |
28 | 196547560 |
29 | 393095120 |
30 | 786199088 |
31 | 1572398176 |
32 | 3144813974 |
[0,0,2,4,10,20,44,88,182,364,740,1480,2980,5960, 11960,23920,47914,95828,191804,383608,767500, 1535000,3070568,6141136,12283388,24566776, 49135784,98271568,196547560,393095120,786199088, 1572398176,3144813974] |