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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 5 |
| 3 | 10 |
| 4 | 22 |
| 5 | 44 |
| 6 | 91 |
| 7 | 182 |
| 8 | 370 |
| 9 | 740 |
| 10 | 1490 |
| 11 | 2980 |
| 12 | 5979 |
| 13 | 11958 |
| 14 | 23950 |
| 15 | 47900 |
| 16 | 95865 |
| 17 | 191730 |
| 18 | 383580 |
| 19 | 767160 |
| 20 | 1534549 |
| 21 | 3069098 |
| 22 | 6138628 |
| 23 | 12277256 |
| 24 | 24555341 |
| 25 | 49110682 |
| 26 | 98222947 |
| 27 | 196445894 |
| 28 | 392894839 |
| 29 | 785789678 |
| 30 | 1571585230 |
| 31 | 3143170460 |
| 32 | 6286352290 |
| 33 | 12572704580 |
| 34 | 25145431172 |
[1,2,5,10,22,44,91,182,370,740,1490,2980,5979, 11958,23950,47900,95865,191730,383580,767160, 1534549,3069098,6138628,12277256,24555341, 49110682,98222947,196445894,392894839,785789678, 1571585230,3143170460,6286352290,12572704580, 25145431172] |