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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 4 |
| 3 | 24 |
| 4 | 72 |
| 5 | 160 |
| 6 | 300 |
| 7 | 504 |
| 8 | 784 |
| 9 | 1152 |
| 10 | 1620 |
| 11 | 2200 |
| 12 | 2904 |
| 13 | 3744 |
| 14 | 4732 |
| 15 | 5880 |
| 16 | 7200 |
| 17 | 8704 |
| 18 | 10404 |
| 19 | 12312 |
| 20 | 14440 |
| 21 | 16800 |
| 22 | 19404 |
| 23 | 22264 |
| 24 | 25392 |
| 25 | 28800 |
| 26 | 32500 |
| 27 | 36504 |
| 28 | 40824 |
| 29 | 45472 |
| 30 | 50460 |
| 31 | 55800 |
| 32 | 61504 |
| 33 | 67584 |
| 34 | 74052 |
| 35 | 80920 |
| 36 | 88200 |
| 37 | 95904 |
| 38 | 104044 |
| 39 | 112632 |
| 40 | 121680 |
| 41 | 131200 |
[0,4,24,72,160,300,504,784,1152,1620,2200,2904, 3744,4732,5880,7200,8704,10404,12312,14440,16800, 19404,22264,25392,28800,32500,36504,40824,45472, 50460,55800,61504,67584,74052,80920,88200,95904, 104044,112632,121680,131200] |