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| n | a(n) |
|---|---|
| 1 | 41 |
| 2 | 313 |
| 3 | 1201 |
| 4 | 7321 |
| 5 | 14281 |
| 6 | 41761 |
| 7 | 139921 |
| 8 | 353641 |
| 9 | 6922921 |
| 10 | 12705841 |
| 11 | 14199121 |
| 12 | 56275441 |
| 13 | 81523681 |
| 14 | 784119601 |
| 15 | 1984563001 |
| 16 | 4798962481 |
| 17 | 5049019561 |
| 18 | 6448958881 |
| 19 | 7763701441 |
| 20 | 15410832361 |
| 21 | 17253574561 |
| 22 | 20321481601 |
| 23 | 22977034081 |
| 24 | 26321586241 |
[41,313,1201,7321,14281,41761,139921,353641, 6922921,12705841,14199121,56275441,81523681, 784119601,1984563001,4798962481,5049019561, 6448958881,7763701441,15410832361,17253574561, 20321481601,22977034081,26321586241] |