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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 4 |
| 3 | 6 |
| 4 | 16 |
| 5 | 24 |
| 6 | 104 |
| 7 | 121 |
| 8 | 283 |
| 9 | 326 |
| 10 | 489 |
| 11 | 1387 |
| 12 | 1394 |
| 13 | 1424 |
| 14 | 1435 |
| 15 | 1985 |
| 16 | 4323 |
| 17 | 5221 |
[1,4,6,16,24,104,121,283,326,489,1387,1394,1424, 1435,1985,4323,5221] |