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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 11 |
| 4 | 13 |
| 5 | 35 |
| 6 | 55 |
| 7 | 65 |
| 8 | 77 |
| 9 | 91 |
| 10 | 137 |
| 11 | 365 |
| 12 | 685 |
| 13 | 9091 |
| 14 | 49505 |
| 15 | 909091 |
| 16 | 5882353 |
| 17 | 10989011 |
| 18 | 12987013 |
| 19 | 20242915 |
| 20 | 23923445 |
| 21 | 34965035 |
| 22 | 37593985 |
| 23 | 52631579 |
| 24 | 54945055 |
| 25 | 64935065 |
| 26 | 76923077 |
| 27 | 90909091 |
| 28 | 495049505 |
| 29 | 1976284585 |
| 30 | 4132231405 |
| 31 | 4347826087 |
| 32 | 9090909091 |
| 33 | 13698630137 |
[1,5,11,13,35,55,65,77,91,137,365,685,9091,49505, 909091,5882353,10989011,12987013,20242915, 23923445,34965035,37593985,52631579,54945055, 64935065,76923077,90909091,495049505,1976284585, 4132231405,4347826087,9090909091,13698630137] |