n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 16 |
4 | 64 |
5 | 241 |
6 | 920 |
7 | 3384 |
8 | 12585 |
9 | 46471 |
10 | 172226 |
11 | 633138 |
12 | 2333757 |
13 | 8561679 |
14 | 31462176 |
15 | 115247629 |
16 | 422677188 |
17 | 1546186675 |
18 | 5661378449 |
19 | 20689242550 |
20 | 75663420126 |
21 | 276279455583 |
22 | 1009416896015 |
23 | 3683274847187 |
24 | 13446591920995 |
25 | 49037278586475 |
26 | 178904588083788 |
27 | 652111697384508 |
28 | 2377810831870022 |
[1,4,16,64,241,920,3384,12585,46471,172226,633138, 2333757,8561679,31462176,115247629,422677188, 1546186675,5661378449,20689242550,75663420126, 276279455583,1009416896015,3683274847187, 13446591920995,49037278586475,178904588083788, 652111697384508,2377810831870022] |