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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 4 |
| 4 | 8 |
| 5 | 24 |
| 6 | 48 |
| 7 | 112 |
| 8 | 224 |
| 9 | 480 |
| 10 | 960 |
| 11 | 1984 |
| 12 | 3968 |
| 13 | 8064 |
| 14 | 16128 |
| 15 | 32512 |
| 16 | 65024 |
| 17 | 130560 |
| 18 | 261120 |
| 19 | 523264 |
| 20 | 1046528 |
| 21 | 2095104 |
| 22 | 4190208 |
| 23 | 8384512 |
| 24 | 16769024 |
| 25 | 33546240 |
| 26 | 67092480 |
| 27 | 134201344 |
| 28 | 268402688 |
| 29 | 536838144 |
| 30 | 1073676288 |
| 31 | 2147418112 |
| 32 | 4294836224 |
| 33 | 8589803520 |
[0,0,4,8,24,48,112,224,480,960,1984,3968,8064, 16128,32512,65024,130560,261120,523264,1046528, 2095104,4190208,8384512,16769024,33546240, 67092480,134201344,268402688,536838144,1073676288, 2147418112,4294836224,8589803520] |