n | a(n) |
---|---|
1 | 0 |
2 | 2 |
3 | 4 |
4 | 10 |
5 | 20 |
6 | 44 |
7 | 88 |
8 | 182 |
9 | 364 |
10 | 738 |
11 | 1476 |
12 | 2972 |
13 | 5944 |
14 | 11924 |
15 | 23848 |
16 | 47768 |
17 | 95536 |
18 | 191214 |
19 | 382428 |
20 | 765136 |
21 | 1530272 |
22 | 3061104 |
23 | 6122208 |
24 | 12245530 |
25 | 24491060 |
26 | 48984342 |
27 | 97968684 |
28 | 195941804 |
29 | 391883608 |
30 | 783776080 |
31 | 1567552160 |
32 | 3135122038 |
33 | 6270244076 |
[0,2,4,10,20,44,88,182,364,738,1476,2972,5944, 11924,23848,47768,95536,191214,382428,765136, 1530272,3061104,6122208,12245530,24491060, 48984342,97968684,195941804,391883608,783776080, 1567552160,3135122038,6270244076] |