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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 4 |
| 3 | 5 |
| 4 | 10 |
| 5 | 14 |
| 6 | 41 |
| 7 | 94 |
| 8 | 154 |
| 9 | 158 |
| 10 | 500 |
| 11 | 14140 |
| 12 | 19004 |
| 13 | 21928 |
| 14 | 44009 |
| 15 | 54629 |
| 16 | 57148 |
| 17 | 260653 |
| 18 | 281228 |
| 19 | 342280 |
| 20 | 519448 |
| 21 | 749938 |
| 22 | 930866 |
[1,4,5,10,14,41,94,154,158,500,14140,19004,21928, 44009,54629,57148,260653,281228,342280,519448, 749938,930866] |