n | a(n) |
---|---|
1 | 4 |
2 | 16 |
3 | 36 |
4 | 100 |
5 | 256 |
6 | 676 |
7 | 1764 |
8 | 4624 |
9 | 12100 |
10 | 31684 |
11 | 82944 |
12 | 217156 |
13 | 568516 |
14 | 1488400 |
15 | 3896676 |
16 | 10201636 |
17 | 26708224 |
18 | 69923044 |
19 | 183060900 |
20 | 479259664 |
21 | 1254718084 |
22 | 3284894596 |
23 | 8599965696 |
24 | 22515002500 |
25 | 58945041796 |
26 | 154320122896 |
27 | 404015326884 |
[4,16,36,100,256,676,1764,4624,12100,31684,82944, 217156,568516,1488400,3896676,10201636,26708224, 69923044,183060900,479259664,1254718084, 3284894596,8599965696,22515002500,58945041796, 154320122896,404015326884] |