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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 4 |
| 5 | 8 |
| 6 | 16 |
| 7 | 32 |
| 8 | 64 |
| 9 | 192 |
| 10 | 384 |
| 11 | 768 |
| 12 | 1536 |
| 13 | 3072 |
| 14 | 6144 |
| 15 | 12288 |
| 16 | 24576 |
| 17 | 49152 |
| 18 | 98304 |
| 19 | 196608 |
| 20 | 393216 |
| 21 | 786432 |
| 22 | 1572864 |
| 23 | 3145728 |
| 24 | 6291456 |
| 25 | 10485760 |
| 26 | 20971520 |
| 27 | 41943040 |
| 28 | 83886080 |
| 29 | 167772160 |
| 30 | 335544320 |
| 31 | 671088640 |
| 32 | 1342177280 |
[0,0,0,4,8,16,32,64,192,384,768,1536,3072,6144, 12288,24576,49152,98304,196608,393216,786432, 1572864,3145728,6291456,10485760,20971520, 41943040,83886080,167772160,335544320,671088640, 1342177280] |