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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 13 |
| 4 | 29 |
| 5 | 56 |
| 6 | 107 |
| 7 | 197 |
| 8 | 365 |
| 9 | 679 |
| 10 | 1280 |
| 11 | 2432 |
| 12 | 4679 |
| 13 | 9075 |
| 14 | 17729 |
| 15 | 34823 |
| 16 | 68701 |
| 17 | 135967 |
| 18 | 269765 |
| 19 | 536200 |
| 20 | 1067284 |
| 21 | 2126648 |
| 22 | 4240978 |
| 23 | 8462667 |
| 24 | 16895039 |
| 25 | 33742281 |
| 26 | 67408931 |
| 27 | 134697820 |
| 28 | 269204657 |
| 29 | 538104774 |
| 30 | 1075723097 |
| 31 | 2150667905 |
| 32 | 4300088957 |
| 33 | 8598178019 |
[1,5,13,29,56,107,197,365,679,1280,2432,4679,9075, 17729,34823,68701,135967,269765,536200,1067284, 2126648,4240978,8462667,16895039,33742281, 67408931,134697820,269204657,538104774,1075723097, 2150667905,4300088957,8598178019] |