n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 20 |
3 | 80 |
4 | 320 |
5 | 1280 |
6 | 5120 |
7 | 20480 |
8 | 81920 |
9 | 327680 |
10 | 1310720 |
11 | 5242880 |
12 | 20971520 |
13 | 83886070 |
14 | 335544240 |
15 | 1342176810 |
16 | 5368706640 |
17 | 21474824160 |
18 | 85899287040 |
19 | 343597109760 |
20 | 1374388285440 |
21 | 5497552527360 |
22 | 21990207651840 |
23 | 87960820776960 |
[1,5,20,80,320,1280,5120,20480,81920,327680, 1310720,5242880,20971520,83886070,335544240, 1342176810,5368706640,21474824160,85899287040, 343597109760,1374388285440,5497552527360, 21990207651840,87960820776960] |