n | a(n) |
---|---|
0 | 4 |
1 | 10 |
2 | 25 |
3 | 62 |
4 | 153 |
5 | 377 |
6 | 928 |
7 | 2284 |
8 | 5621 |
9 | 13833 |
10 | 34042 |
11 | 83774 |
12 | 206159 |
13 | 507335 |
14 | 1248496 |
15 | 3072412 |
16 | 7560869 |
17 | 18606469 |
18 | 45788478 |
19 | 112680418 |
20 | 277294139 |
21 | 682390435 |
22 | 1679287948 |
23 | 4132543288 |
24 | 10169735361 |
25 | 25026602289 |
26 | 61587720810 |
27 | 151560619806 |
28 | 372974046999 |
[4,10,25,62,153,377,928,2284,5621,13833,34042, 83774,206159,507335,1248496,3072412,7560869, 18606469,45788478,112680418,277294139,682390435, 1679287948,4132543288,10169735361,25026602289, 61587720810,151560619806,372974046999] |