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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 4 |
| 3 | 5 |
| 4 | 7 |
| 5 | 24 |
| 6 | 25 |
| 7 | 15 |
| 8 | 112 |
| 9 | 113 |
| 10 | 31 |
| 11 | 480 |
| 12 | 481 |
| 13 | 63 |
| 14 | 1984 |
| 15 | 1985 |
| 16 | 127 |
| 17 | 8064 |
| 18 | 8065 |
| 19 | 255 |
| 20 | 32512 |
| 21 | 32513 |
| 22 | 511 |
| 23 | 130560 |
| 24 | 130561 |
| 25 | 1023 |
| 26 | 523264 |
| 27 | 523265 |
| 28 | 2047 |
| 29 | 2095104 |
| 30 | 2095105 |
| 31 | 4095 |
| 32 | 8384512 |
| 33 | 8384513 |
| 34 | 8191 |
| 35 | 33546240 |
| 36 | 33546241 |
| 37 | 16383 |
| 38 | 134201344 |
| 39 | 134201345 |
[3,4,5,7,24,25,15,112,113,31,480,481,63,1984,1985, 127,8064,8065,255,32512,32513,511,130560,130561, 1023,523264,523265,2047,2095104,2095105,4095, 8384512,8384513,8191,33546240,33546241,16383, 134201344,134201345] |