n | a(n) |
---|---|
1 | 17 |
2 | 51 |
3 | 161 |
4 | 531 |
5 | 1817 |
6 | 6411 |
7 | 23201 |
8 | 85731 |
9 | 322217 |
10 | 1227771 |
11 | 4729841 |
12 | 18379731 |
13 | 71908217 |
14 | 282817131 |
15 | 1116854081 |
16 | 4424238531 |
17 | 17567551817 |
18 | 69882262491 |
19 | 278365739921 |
20 | 1109974078131 |
21 | 4429431765017 |
22 | 17686337611851 |
23 | 70651190491361 |
24 | 282322298874531 |
[17,51,161,531,1817,6411,23201,85731,322217, 1227771,4729841,18379731,71908217,282817131, 1116854081,4424238531,17567551817,69882262491, 278365739921,1109974078131,4429431765017, 17686337611851,70651190491361,282322298874531] |