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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 4 |
| 3 | 6 |
| 4 | 9 |
| 5 | 11 |
| 6 | 21 |
| 7 | 24 |
| 8 | 43 |
| 9 | 62 |
| 10 | 102 |
| 11 | 147 |
| 12 | 259 |
| 13 | 380 |
| 14 | 636 |
| 15 | 1003 |
| 16 | 1640 |
| 17 | 2587 |
| 18 | 4258 |
| 19 | 6768 |
| 20 | 11053 |
| 21 | 17740 |
| 22 | 28806 |
| 23 | 46371 |
| 24 | 75318 |
| 25 | 121405 |
| 26 | 196800 |
| 27 | 317874 |
| 28 | 514870 |
| 29 | 832043 |
| 30 | 1347376 |
| 31 | 2178312 |
| 32 | 3526218 |
| 33 | 5703039 |
| 34 | 9230054 |
| 35 | 14930386 |
| 36 | 24162313 |
| 37 | 39088172 |
| 38 | 63252756 |
| 39 | 102334540 |
[1,2,4,6,9,11,21,24,43,62,102,147,259,380,636, 1003,1640,2587,4258,6768,11053,17740,28806,46371, 75318,121405,196800,317874,514870,832043,1347376, 2178312,3526218,5703039,9230054,14930386,24162313, 39088172,63252756,102334540] |