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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 7 |
| 3 | 7 |
| 4 | 19 |
| 5 | 19 |
| 6 | 37 |
| 7 | 43 |
| 8 | 61 |
| 9 | 73 |
| 10 | 91 |
| 11 | 109 |
| 12 | 127 |
| 13 | 151 |
| 14 | 187 |
| 15 | 199 |
| 16 | 241 |
| 17 | 253 |
| 18 | 301 |
| 19 | 313 |
| 20 | 367 |
| 21 | 397 |
| 22 | 439 |
| 23 | 475 |
| 24 | 517 |
| 25 | 571 |
| 26 | 613 |
| 27 | 661 |
| 28 | 721 |
| 29 | 757 |
| 30 | 823 |
| 31 | 859 |
| 32 | 931 |
| 33 | 979 |
| 34 | 1045 |
| 35 | 1111 |
| 36 | 1165 |
| 37 | 1237 |
| 38 | 1303 |
| 39 | 1381 |
| 40 | 1459 |
| 41 | 1519 |
| 42 | 1615 |
| 43 | 1663 |
| 44 | 1765 |
| 45 | 1813 |
| 46 | 1921 |
| 47 | 1993 |
| 48 | 2083 |
| 49 | 2173 |
| 50 | 2263 |
[1,1,7,7,19,19,37,43,61,73,91,109,127,151,187,199, 241,253,301,313,367,397,439,475,517,571,613,661, 721,757,823,859,931,979,1045,1111,1165,1237,1303, 1381,1459,1519,1615,1663,1765,1813,1921,1993,2083, 2173,2263] |