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| n | a(n) |
|---|---|
| 1 | -1 |
| 2 | 1 |
| 3 | 4 |
| 4 | 4 |
| 5 | 9 |
| 6 | 17 |
| 7 | 18 |
| 8 | 21 |
| 9 | 23 |
| 10 | 33 |
| 11 | 47 |
| 12 | 62 |
| 13 | 77 |
| 14 | 96 |
| 15 | 98 |
| 16 | 99 |
| 17 | 113 |
| 18 | 137 |
| 19 | 159 |
| 20 | 175 |
| 21 | 182 |
| 22 | 196 |
| 23 | 207 |
| 24 | 236 |
| 25 | 265 |
| 26 | 282 |
| 27 | 297 |
| 28 | 333 |
| 29 | 370 |
| 30 | 411 |
| 31 | 433 |
| 32 | 448 |
| 33 | 493 |
| 34 | 536 |
| 35 | 579 |
| 36 | 628 |
| 37 | 681 |
| 38 | 734 |
| 39 | 791 |
| 40 | 848 |
| 41 | 879 |
| 42 | 899 |
| 43 | 962 |
| 44 | 1028 |
| 45 | 1094 |
| 46 | 1159 |
| 47 | 1192 |
| 48 | 1220 |
| 49 | 1293 |
| 50 | 1364 |
| 51 | 1437 |
| 52 | 1514 |
| 53 | 1559 |
| 54 | 1591 |
[-1,1,4,4,9,17,18,21,23,33,47,62,77,96,98,99,113, 137,159,175,182,196,207,236,265,282,297,333,370, 411,433,448,493,536,579,628,681,734,791,848,879, 899,962,1028,1094,1159,1192,1220,1293,1364,1437, 1514,1559,1591] |