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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 4 |
| 2 | 14 |
| 3 | 43 |
| 4 | 93 |
| 5 | 185 |
| 6 | 342 |
| 7 | 608 |
| 8 | 1050 |
| 9 | 1779 |
| 10 | 2973 |
| 11 | 4921 |
| 12 | 8119 |
| 13 | 13296 |
| 14 | 21704 |
| 15 | 35324 |
| 16 | 57389 |
| 17 | 93113 |
| 18 | 150943 |
| 19 | 244540 |
| 20 | 396012 |
| 21 | 641128 |
| 22 | 1037765 |
| 23 | 1679569 |
| 24 | 2718063 |
| 25 | 4398416 |
| 26 | 7117320 |
| 27 | 11516636 |
| 28 | 18634917 |
| 29 | 30152577 |
| 30 | 48788583 |
| 31 | 78942316 |
| 32 | 127732124 |
| 33 | 206675736 |
| 34 | 334409229 |
[1,4,14,43,93,185,342,608,1050,1779,2973,4921, 8119,13296,21704,35324,57389,93113,150943,244540, 396012,641128,1037765,1679569,2718063,4398416, 7117320,11516636,18634917,30152577,48788583, 78942316,127732124,206675736,334409229] |