n | a(n) |
---|---|
1 | 4 |
2 | 17 |
3 | 25 |
4 | 71 |
5 | 191 |
6 | 498 |
7 | 1321 |
8 | 3505 |
9 | 9240 |
10 | 24460 |
11 | 64759 |
12 | 171268 |
13 | 453200 |
14 | 1199361 |
15 | 3173346 |
16 | 8396961 |
17 | 22219739 |
18 | 58794851 |
19 | 155576745 |
20 | 411673594 |
21 | 1089327367 |
22 | 2882467725 |
23 | 7627305260 |
24 | 20182608868 |
25 | 53405199549 |
26 | 141315536296 |
27 | 373935069260 |
[4,17,25,71,191,498,1321,3505,9240,24460,64759, 171268,453200,1199361,3173346,8396961,22219739, 58794851,155576745,411673594,1089327367, 2882467725,7627305260,20182608868,53405199549, 141315536296,373935069260] |