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| n | a(n) |
|---|---|
| 1 | 313 |
| 2 | 111 |
| 3 | 212 |
| 4 | 414 |
| 5 | 616 |
| 6 | 40140 |
| 7 | 28128 |
| 8 | 76176 |
| 9 | 1841184 |
| 10 | 60160 |
| 11 | 4001400 |
| 12 | 9201920 |
| 13 | 126411264 |
| 14 | 6641664 |
| 15 | 280012800 |
| 16 | 11614111614 |
| 17 | 894418944 |
| 18 | 40288140288 |
| 19 | 74080174080 |
| 20 | 24928124928 |
| 21 | 4827521482752 |
| 22 | 2206081220608 |
| 23 | 196032011960320 |
| 24 | 7448961744896 |
| 25 | 222246412222464 |
| 26 | 34873088134873088 |
| 27 | 300889613008896 |
| 28 | 720320017203200 |
[313,111,212,414,616,40140,28128,76176,1841184, 60160,4001400,9201920,126411264,6641664,280012800, 11614111614,894418944,40288140288,74080174080, 24928124928,4827521482752,2206081220608, 196032011960320,7448961744896,222246412222464, 34873088134873088,300889613008896,720320017203200] |