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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 13 |
| 3 | 13 |
| 4 | 31 |
| 5 | 169 |
| 6 | 31 |
| 7 | 57 |
| 8 | 403 |
| 9 | 403 |
| 10 | 57 |
| 11 | 121 |
| 12 | 741 |
| 13 | 961 |
| 14 | 741 |
| 15 | 121 |
| 16 | 133 |
| 17 | 1573 |
| 18 | 1767 |
| 19 | 1767 |
| 20 | 1573 |
| 21 | 133 |
| 22 | 183 |
| 23 | 1729 |
| 24 | 3751 |
| 25 | 3249 |
| 26 | 3751 |
| 27 | 1729 |
| 28 | 183 |
| 29 | 403 |
| 30 | 2379 |
| 31 | 4123 |
| 32 | 6897 |
| 33 | 6897 |
| 34 | 4123 |
| 35 | 2379 |
| 36 | 403 |
| 37 | 307 |
| 38 | 5239 |
| 39 | 5673 |
| 40 | 7581 |
| 41 | 14641 |
| 42 | 7581 |
| 43 | 5673 |
| 44 | 5239 |
| 45 | 307 |
| 46 | 381 |
| 47 | 3991 |
| 48 | 12493 |
| 49 | 10431 |
| 50 | 16093 |
| 51 | 16093 |
| 52 | 10431 |
| 53 | 12493 |
| 54 | 3991 |
| 55 | 381 |
| 56 | 741 |
| 57 | 4953 |
| 58 | 9517 |
| 59 | 22971 |
| 60 | 22143 |
| 61 | 17689 |
| 62 | 22143 |
| 63 | 22971 |
| 64 | 9517 |
| 65 | 4953 |
| 66 | 741 |
[1,13,13,31,169,31,57,403,403,57,121,741,961,741, 121,133,1573,1767,1767,1573,133,183,1729,3751, 3249,3751,1729,183,403,2379,4123,6897,6897,4123, 2379,403,307,5239,5673,7581,14641,7581,5673,5239, 307,381,3991,12493,10431,16093,16093,10431,12493, 3991,381,741,4953,9517,22971,22143,17689,22143, 22971,9517,4953,741] |