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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 4 |
| 2 | 5 |
| 3 | 9 |
| 4 | 14 |
| 5 | 23 |
| 6 | 37 |
| 7 | 60 |
| 8 | 97 |
| 9 | 157 |
| 10 | 254 |
| 11 | 411 |
| 12 | 665 |
| 13 | 1076 |
| 14 | 1741 |
| 15 | 2817 |
| 16 | 4558 |
| 17 | 7375 |
| 18 | 11933 |
| 19 | 19308 |
| 20 | 31241 |
| 21 | 50549 |
| 22 | 81790 |
| 23 | 132339 |
| 24 | 214129 |
| 25 | 346468 |
| 26 | 560597 |
| 27 | 907065 |
| 28 | 1467662 |
| 29 | 2374727 |
| 30 | 3842389 |
| 31 | 6217116 |
| 32 | 10059505 |
| 33 | 16276621 |
| 34 | 26336126 |
| 35 | 42612747 |
| 36 | 68948873 |
| 37 | 111561620 |
| 38 | 180510493 |
| 39 | 292072113 |
| 40 | 472582606 |
[1,4,5,9,14,23,37,60,97,157,254,411,665,1076,1741, 2817,4558,7375,11933,19308,31241,50549,81790, 132339,214129,346468,560597,907065,1467662, 2374727,3842389,6217116,10059505,16276621, 26336126,42612747,68948873,111561620,180510493, 292072113,472582606] |