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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 6 |
| 3 | 14 |
| 4 | 26 |
| 5 | 58 |
| 6 | 106 |
| 7 | 226 |
| 8 | 438 |
| 9 | 898 |
| 10 | 1734 |
| 11 | 3630 |
| 12 | 7010 |
| 13 | 14454 |
| 14 | 27842 |
| 15 | 58342 |
| 16 | 112154 |
| 17 | 230706 |
| 18 | 445950 |
| 19 | 929794 |
| 20 | 1800198 |
| 21 | 3689482 |
| 22 | 7141906 |
| 23 | 14911790 |
| 24 | 28729314 |
| 25 | 59080726 |
| 26 | 114114614 |
| 27 | 238116962 |
| 28 | 461000950 |
| 29 | 944490886 |
| 30 | 1827698382 |
| 31 | 3818422514 |
| 32 | 7355613582 |
[1,3,6,14,26,58,106,226,438,898,1734,3630,7010, 14454,27842,58342,112154,230706,445950,929794, 1800198,3689482,7141906,14911790,28729314, 59080726,114114614,238116962,461000950,944490886, 1827698382,3818422514,7355613582] |