n | a(n) |
---|---|
1 | 1 |
2 | 7 |
3 | 23 |
4 | 79 |
5 | 223 |
6 | 703 |
7 | 2175 |
8 | 6399 |
9 | 19455 |
10 | 58367 |
11 | 176127 |
12 | 528383 |
13 | 1589247 |
14 | 4767743 |
15 | 14319615 |
16 | 42991615 |
17 | 129105919 |
18 | 387186687 |
19 | 1161822207 |
20 | 3486515199 |
21 | 10458497023 |
22 | 31377588223 |
23 | 94136958975 |
24 | 282427654143 |
25 | 847282962431 |
26 | 2541815332863 |
[1,7,23,79,223,703,2175,6399,19455,58367,176127, 528383,1589247,4767743,14319615,42991615, 129105919,387186687,1161822207,3486515199, 10458497023,31377588223,94136958975,282427654143, 847282962431,2541815332863] |