n | a(n) |
---|---|
1 | 4 |
2 | 6 |
3 | 16 |
4 | 39 |
5 | 81 |
6 | 168 |
7 | 361 |
8 | 780 |
9 | 1681 |
10 | 3612 |
11 | 7744 |
12 | 16620 |
13 | 35721 |
14 | 76755 |
15 | 164836 |
16 | 354006 |
17 | 760384 |
18 | 1633275 |
19 | 3508129 |
20 | 7535088 |
21 | 16184529 |
22 | 34762680 |
23 | 74666881 |
24 | 160377096 |
25 | 344473600 |
26 | 739894200 |
27 | 1589218225 |
28 | 3413480691 |
29 | 7331811876 |
30 | 15747991350 |
[4,6,16,39,81,168,361,780,1681,3612,7744,16620, 35721,76755,164836,354006,760384,1633275,3508129, 7535088,16184529,34762680,74666881,160377096, 344473600,739894200,1589218225,3413480691, 7331811876,15747991350] |