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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 2 |
| 6 | 3 |
| 7 | 5 |
| 8 | 7 |
| 9 | 10 |
| 10 | 15 |
| 11 | 22 |
| 12 | 31 |
| 13 | 47 |
| 14 | 69 |
| 15 | 101 |
| 16 | 148 |
| 17 | 217 |
| 18 | 318 |
| 19 | 468 |
| 20 | 687 |
| 21 | 1008 |
| 22 | 1479 |
| 23 | 2171 |
| 24 | 3187 |
| 25 | 4678 |
| 26 | 6867 |
| 27 | 10078 |
| 28 | 14793 |
| 29 | 21714 |
| 30 | 31870 |
| 31 | 46780 |
| 32 | 68664 |
| 33 | 100784 |
| 34 | 147931 |
| 35 | 217134 |
| 36 | 318707 |
| 37 | 467800 |
| 38 | 686635 |
| 39 | 1007843 |
| 40 | 1479311 |
| 41 | 2171332 |
| 42 | 3187079 |
| 43 | 4677993 |
| 44 | 6866354 |
[2,1,1,1,2,3,5,7,10,15,22,31,47,69,101,148,217, 318,468,687,1008,1479,2171,3187,4678,6867,10078, 14793,21714,31870,46780,68664,100784,147931, 217134,318707,467800,686635,1007843,1479311, 2171332,3187079,4677993,6866354] |