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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 7 |
| 3 | 14 |
| 4 | 27 |
| 5 | 52 |
| 6 | 100 |
| 7 | 192 |
| 8 | 371 |
| 9 | 728 |
| 10 | 1454 |
| 11 | 2940 |
| 12 | 5968 |
| 13 | 12080 |
| 14 | 24304 |
| 15 | 48608 |
| 16 | 96851 |
| 17 | 192816 |
| 18 | 384562 |
| 19 | 769636 |
| 20 | 1546226 |
| 21 | 3116184 |
| 22 | 6290984 |
| 23 | 12700832 |
| 24 | 25603536 |
| 25 | 51479808 |
| 26 | 103178992 |
| 27 | 206133344 |
| 28 | 410674512 |
| 29 | 816542272 |
| 30 | 1621848640 |
| 31 | 3221225472 |
| 32 | 6403020371 |
| 33 | 12746005088 |
[1,3,7,14,27,52,100,192,371,728,1454,2940,5968, 12080,24304,48608,96851,192816,384562,769636, 1546226,3116184,6290984,12700832,25603536, 51479808,103178992,206133344,410674512,816542272, 1621848640,3221225472,6403020371,12746005088] |