n | a(n) |
---|---|
1 | 4 |
2 | 9 |
3 | 21 |
4 | 51 |
5 | 127 |
6 | 324 |
7 | 844 |
8 | 2243 |
9 | 6073 |
10 | 16737 |
11 | 46905 |
12 | 133556 |
13 | 386062 |
14 | 1132107 |
15 | 3365627 |
16 | 10137559 |
17 | 30920943 |
18 | 95457178 |
19 | 298128278 |
20 | 941574417 |
21 | 3006040523 |
22 | 9697677885 |
23 | 31602993021 |
24 | 104001763258 |
25 | 345524136076 |
26 | 1158570129917 |
[4,9,21,51,127,324,844,2243,6073,16737,46905, 133556,386062,1132107,3365627,10137559,30920943, 95457178,298128278,941574417,3006040523, 9697677885,31602993021,104001763258,345524136076, 1158570129917] |