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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 7 |
| 3 | 15 |
| 4 | 31 |
| 5 | 63 |
| 6 | 127 |
| 7 | 255 |
| 8 | 510 |
| 9 | 1021 |
| 10 | 2042 |
| 11 | 4085 |
| 12 | 8170 |
| 13 | 16341 |
| 14 | 32682 |
| 15 | 65365 |
| 16 | 130730 |
| 17 | 261461 |
| 18 | 522922 |
| 19 | 1045845 |
| 20 | 2091690 |
| 21 | 4183381 |
| 22 | 8366762 |
| 23 | 16733525 |
| 24 | 33467050 |
| 25 | 66934101 |
| 26 | 133868202 |
| 27 | 267736405 |
| 28 | 535472810 |
| 29 | 1070945621 |
| 30 | 2141891242 |
| 31 | 4283782485 |
| 32 | 8567564970 |
[1,3,7,15,31,63,127,255,510,1021,2042,4085,8170, 16341,32682,65365,130730,261461,522922,1045845, 2091690,4183381,8366762,16733525,33467050, 66934101,133868202,267736405,535472810,1070945621, 2141891242,4283782485,8567564970] |