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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 5 |
| 3 | 13 |
| 4 | 52 |
| 5 | 241 |
| 6 | 241 |
| 7 | 436 |
| 8 | 1009 |
| 9 | 1009 |
| 10 | 1009 |
| 11 | 2641 |
| 12 | 2641 |
| 13 | 8089 |
| 14 | 8089 |
| 15 | 8089 |
| 16 | 8089 |
| 17 | 18001 |
| 18 | 18001 |
| 19 | 53881 |
| 20 | 53881 |
| 21 | 53881 |
| 22 | 53881 |
| 23 | 87481 |
| 24 | 87481 |
| 25 | 87481 |
| 26 | 87481 |
| 27 | 87481 |
| 28 | 87481 |
| 29 | 117049 |
| 30 | 117049 |
| 31 | 515761 |
| 32 | 515761 |
| 33 | 515761 |
| 34 | 515761 |
| 35 | 515761 |
| 36 | 515761 |
| 37 | 1083289 |
| 38 | 1083289 |
| 39 | 1083289 |
| 40 | 1083289 |
[2,5,13,52,241,241,436,1009,1009,1009,2641,2641, 8089,8089,8089,8089,18001,18001,53881,53881,53881, 53881,87481,87481,87481,87481,87481,87481,117049, 117049,515761,515761,515761,515761,515761,515761, 1083289,1083289,1083289,1083289] |