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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 5 |
| 3 | 17 |
| 4 | 0 |
| 5 | 33 |
| 6 | 66 |
| 7 | 386 |
| 8 | 258 |
| 9 | 513 |
| 10 | 1026 |
| 11 | 0 |
| 12 | 16388 |
| 13 | 57345 |
| 14 | 16389 |
| 15 | 196610 |
| 16 | 262149 |
| 17 | 0 |
| 18 | 786438 |
| 19 | 3145733 |
| 20 | 6291461 |
| 21 | 0 |
| 22 | 29360132 |
| 23 | 0 |
| 24 | 67108871 |
| 25 | 234881030 |
| 26 | 201326601 |
| 27 | 1207959557 |
| 28 | 2415919109 |
| 29 | 3758096387 |
| 30 | 5368709130 |
| 31 | 10737418245 |
| 32 | 30064771083 |
[2,5,17,0,33,66,386,258,513,1026,0,16388,57345, 16389,196610,262149,0,786438,3145733,6291461,0, 29360132,0,67108871,234881030,201326601, 1207959557,2415919109,3758096387,5368709130, 10737418245,30064771083] |