n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 6 |
4 | 9 |
5 | 61 |
6 | 121 |
7 | 544 |
8 | 1357 |
9 | 5100 |
10 | 14340 |
11 | 49324 |
12 | 147230 |
13 | 485141 |
14 | 1491460 |
15 | 4812843 |
16 | 15012153 |
17 | 47950974 |
18 | 150636184 |
19 | 478755674 |
20 | 1509249756 |
21 | 4785018013 |
22 | 15110309428 |
23 | 47849311565 |
24 | 151226992088 |
25 | 478604645313 |
26 | 1513243349293 |
27 | 4787751445331 |
[0,1,6,9,61,121,544,1357,5100,14340,49324,147230, 485141,1491460,4812843,15012153,47950974, 150636184,478755674,1509249756,4785018013, 15110309428,47849311565,151226992088,478604645313, 1513243349293,4787751445331] |