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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 1 |
| 3 | 12 |
| 4 | 3 |
| 5 | 60 |
| 6 | 3 |
| 7 | 249 |
| 8 | 0 |
| 9 | 1019 |
| 10 | 0 |
| 11 | 4095 |
| 12 | 0 |
| 13 | 16383 |
| 14 | 12 |
| 15 | 65505 |
| 16 | 12 |
| 17 | 262115 |
| 18 | 16 |
| 19 | 1048551 |
| 20 | 16 |
| 21 | 4194255 |
| 22 | 16 |
| 23 | 16777167 |
| 24 | 16 |
| 25 | 67108815 |
| 26 | 16 |
| 27 | 268435455 |
| 28 | 56 |
| 29 | 1073741699 |
| 30 | 56 |
| 31 | 4294967107 |
| 32 | 244 |
| 33 | 17179869171 |
| 34 | 60 |
| 35 | 68719476233 |
| 36 | 352 |
| 37 | 274877906591 |
| 38 | 480 |
| 39 | 1099511627679 |
| 40 | 0 |
[1,3,1,12,3,60,3,249,0,1019,0,4095,0,16383,12, 65505,12,262115,16,1048551,16,4194255,16,16777167, 16,67108815,16,268435455,56,1073741699,56, 4294967107,244,17179869171,60,68719476233,352, 274877906591,480,1099511627679,0] |