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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 1 |
| 7 | 0 |
| 8 | 0 |
| 9 | 0 |
| 10 | 1 |
| 11 | 2 |
| 12 | 4 |
| 13 | 8 |
| 14 | 16 |
| 15 | 32 |
| 16 | 64 |
| 17 | 127 |
| 18 | 254 |
| 19 | 508 |
| 20 | 1016 |
| 21 | 2031 |
| 22 | 4060 |
| 23 | 8116 |
| 24 | 16224 |
| 25 | 32432 |
| 26 | 64832 |
| 27 | 129600 |
| 28 | 259073 |
| 29 | 517892 |
| 30 | 1035276 |
| 31 | 2069536 |
| 32 | 4137041 |
| 33 | 8270022 |
| 34 | 16531928 |
| 35 | 33047632 |
| 36 | 66062832 |
| 37 | 132060832 |
| 38 | 263992064 |
| 39 | 527725055 |
| 40 | 1054932218 |
| 41 | 2108829160 |
[0,0,0,0,0,0,1,0,0,0,1,2,4,8,16,32,64,127,254,508, 1016,2031,4060,8116,16224,32432,64832,129600, 259073,517892,1035276,2069536,4137041,8270022, 16531928,33047632,66062832,132060832,263992064, 527725055,1054932218,2108829160] |