n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 16 |
3 | 64 |
4 | 208 |
5 | 656 |
6 | 1984 |
7 | 5632 |
8 | 15520 |
9 | 41476 |
10 | 107312 |
11 | 271232 |
12 | 670464 |
13 | 1622160 |
14 | 3854208 |
15 | 9003264 |
16 | 20696640 |
17 | 46895248 |
18 | 104827472 |
19 | 231353984 |
20 | 504592448 |
21 | 1088323584 |
22 | 2322683072 |
23 | 4908033280 |
24 | 10273819136 |
25 | 21313971876 |
26 | 43843093488 |
[1,4,16,64,208,656,1984,5632,15520,41476,107312, 271232,670464,1622160,3854208,9003264,20696640, 46895248,104827472,231353984,504592448,1088323584, 2322683072,4908033280,10273819136,21313971876, 43843093488] |