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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 7 |
| 6 | 11 |
| 7 | 26 |
| 8 | 42 |
| 9 | 109 |
| 10 | 166 |
| 11 | 373 |
| 12 | 772 |
| 13 | 1532 |
| 14 | 2930 |
| 15 | 6154 |
| 16 | 10933 |
| 17 | 24184 |
| 18 | 44069 |
| 19 | 105575 |
| 20 | 155528 |
| 21 | 374727 |
| 22 | 681122 |
| 23 | 1630332 |
| 24 | 3077586 |
| 25 | 6523332 |
[1,2,3,4,7,11,26,42,109,166,373,772,1532,2930, 6154,10933,24184,44069,105575,155528,374727, 681122,1630332,3077586,6523332] |