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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 3 |
| 4 | 7 |
| 5 | 13 |
| 6 | 25 |
| 7 | 51 |
| 8 | 103 |
| 9 | 205 |
| 10 | 409 |
| 11 | 819 |
| 12 | 1639 |
| 13 | 3277 |
| 14 | 6553 |
| 15 | 13107 |
| 16 | 26215 |
| 17 | 52429 |
| 18 | 104857 |
| 19 | 209715 |
| 20 | 419431 |
| 21 | 838861 |
| 22 | 1677721 |
| 23 | 3355443 |
| 24 | 6710887 |
| 25 | 13421773 |
| 26 | 26843545 |
| 27 | 53687091 |
| 28 | 107374183 |
| 29 | 214748365 |
| 30 | 429496729 |
| 31 | 858993459 |
| 32 | 1717986919 |
| 33 | 3435973837 |
| 34 | 6871947673 |
[1,1,1,3,7,13,25,51,103,205,409,819,1639,3277, 6553,13107,26215,52429,104857,209715,419431, 838861,1677721,3355443,6710887,13421773,26843545, 53687091,107374183,214748365,429496729,858993459, 1717986919,3435973837,6871947673] |