n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 9 |
4 | 25 |
5 | 65 |
6 | 163 |
7 | 401 |
8 | 977 |
9 | 2369 |
10 | 5731 |
11 | 13849 |
12 | 33449 |
13 | 80769 |
14 | 195011 |
15 | 470817 |
16 | 1136673 |
17 | 2744193 |
18 | 6625091 |
19 | 15994409 |
20 | 38613945 |
21 | 93222337 |
22 | 225058659 |
23 | 543339697 |
24 | 1311738097 |
25 | 3166815937 |
26 | 7645370019 |
27 | 18457556025 |
28 | 44560482121 |
29 | 107578520321 |
30 | 259717522819 |
[1,3,9,25,65,163,401,977,2369,5731,13849,33449, 80769,195011,470817,1136673,2744193,6625091, 15994409,38613945,93222337,225058659,543339697, 1311738097,3166815937,7645370019,18457556025, 44560482121,107578520321,259717522819] |