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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 5 |
| 3 | 11 |
| 4 | 27 |
| 5 | 39 |
| 6 | 119 |
| 7 | 207 |
| 8 | 495 |
| 9 | 927 |
| 10 | 1375 |
| 11 | 2111 |
| 12 | 5055 |
| 13 | 9855 |
| 14 | 31103 |
| 15 | 61695 |
| 16 | 100095 |
| 17 | 248319 |
| 18 | 265727 |
| 19 | 533503 |
| 20 | 1051647 |
| 21 | 2131967 |
| 22 | 4208639 |
| 23 | 8392703 |
| 24 | 25964543 |
| 25 | 36184063 |
| 26 | 100720639 |
| 27 | 146817023 |
| 28 | 411090943 |
| 29 | 587235327 |
| 30 | 1644396543 |
| 31 | 2148335615 |
| 32 | 6445793279 |
| 33 | 8590065663 |
[1,3,5,11,27,39,119,207,495,927,1375,2111,5055, 9855,31103,61695,100095,248319,265727,533503, 1051647,2131967,4208639,8392703,25964543,36184063, 100720639,146817023,411090943,587235327, 1644396543,2148335615,6445793279,8590065663] |