n | a(n) |
---|---|
0 | 0 |
1 | 4 |
2 | 20 |
3 | 56 |
4 | 120 |
5 | 220 |
6 | 364 |
7 | 560 |
8 | 816 |
9 | 1140 |
10 | 1540 |
11 | 2024 |
12 | 2600 |
13 | 3276 |
14 | 4060 |
15 | 4960 |
16 | 5984 |
17 | 7140 |
18 | 8436 |
19 | 9880 |
20 | 11480 |
21 | 13244 |
22 | 15180 |
23 | 17296 |
24 | 19600 |
25 | 22100 |
26 | 24804 |
27 | 27720 |
28 | 30856 |
29 | 34220 |
30 | 37820 |
31 | 41664 |
32 | 45760 |
33 | 50116 |
34 | 54740 |
35 | 59640 |
36 | 64824 |
37 | 70300 |
38 | 76076 |
39 | 82160 |
[0,4,20,56,120,220,364,560,816,1140,1540,2024, 2600,3276,4060,4960,5984,7140,8436,9880,11480, 13244,15180,17296,19600,22100,24804,27720,30856, 34220,37820,41664,45760,50116,54740,59640,64824, 70300,76076,82160] |