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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 5 |
| 4 | 9 |
| 5 | 19 |
| 6 | 38 |
| 7 | 79 |
| 8 | 163 |
| 9 | 352 |
| 10 | 750 |
| 11 | 1633 |
| 12 | 3558 |
| 13 | 7783 |
| 14 | 17020 |
| 15 | 37338 |
| 16 | 81920 |
| 17 | 180399 |
| 18 | 398600 |
| 19 | 885101 |
| 20 | 1975638 |
| 21 | 4435741 |
| 22 | 10013855 |
| 23 | 22726109 |
| 24 | 51807432 |
| 25 | 118545425 |
| 26 | 272024659 |
| 27 | 625488420 |
| 28 | 1440067761 |
| 29 | 3317675261 |
| 30 | 7644488052 |
| 31 | 17610215982 |
| 32 | 40547552277 |
| 33 | 93298838972 |
| 34 | 214516498359 |
| 35 | 492844378878 |
[1,2,5,9,19,38,79,163,352,750,1633,3558,7783, 17020,37338,81920,180399,398600,885101,1975638, 4435741,10013855,22726109,51807432,118545425, 272024659,625488420,1440067761,3317675261, 7644488052,17610215982,40547552277,93298838972, 214516498359,492844378878] |