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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 6 |
| 3 | 15 |
| 4 | 12 |
| 5 | 63 |
| 6 | 24 |
| 7 | 255 |
| 8 | 240 |
| 9 | 1023 |
| 10 | 992 |
| 11 | 4095 |
| 12 | 4032 |
| 13 | 16383 |
| 14 | 16256 |
| 15 | 65535 |
| 16 | 65280 |
| 17 | 262143 |
| 18 | 261632 |
| 19 | 1048575 |
| 20 | 1047552 |
| 21 | 4194303 |
| 22 | 4192256 |
| 23 | 16777215 |
| 24 | 16773120 |
| 25 | 67108863 |
| 26 | 67100672 |
| 27 | 268435455 |
| 28 | 268419072 |
| 29 | 1073741823 |
| 30 | 1073709056 |
| 31 | 4294967295 |
| 32 | 4294901760 |
[1,3,6,15,12,63,24,255,240,1023,992,4095,4032, 16383,16256,65535,65280,262143,261632,1048575, 1047552,4194303,4192256,16777215,16773120, 67108863,67100672,268435455,268419072,1073741823, 1073709056,4294967295,4294901760] |