n | a(n) |
---|---|
1 | 3 |
2 | 7 |
3 | 21 |
4 | 59 |
5 | 163 |
6 | 447 |
7 | 1341 |
8 | 3905 |
9 | 11271 |
10 | 32357 |
11 | 92607 |
12 | 277821 |
13 | 820177 |
14 | 2408409 |
15 | 7047447 |
16 | 20576017 |
17 | 59979511 |
18 | 174642457 |
19 | 523927371 |
20 | 1555935031 |
21 | 4604936281 |
22 | 13597391065 |
23 | 40088645243 |
24 | 118057542207 |
25 | 347369262425 |
26 | 1021399936433 |
[3,7,21,59,163,447,1341,3905,11271,32357,92607, 277821,820177,2408409,7047447,20576017,59979511, 174642457,523927371,1555935031,4604936281, 13597391065,40088645243,118057542207,347369262425, 1021399936433] |