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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 9 |
| 3 | 15 |
| 4 | 25 |
| 5 | 27 |
| 6 | 34 |
| 7 | 36 |
| 8 | 49 |
| 9 | 51 |
| 10 | 57 |
| 11 | 63 |
| 12 | 68 |
| 13 | 75 |
| 14 | 81 |
| 15 | 87 |
| 16 | 93 |
| 17 | 111 |
| 18 | 121 |
| 19 | 125 |
| 20 | 129 |
| 21 | 132 |
| 22 | 138 |
| 23 | 141 |
| 24 | 153 |
| 25 | 155 |
| 26 | 159 |
| 27 | 169 |
| 28 | 177 |
| 29 | 237 |
| 30 | 249 |
| 31 | 258 |
| 32 | 261 |
| 33 | 264 |
| 34 | 267 |
| 35 | 274 |
| 36 | 276 |
| 37 | 279 |
| 38 | 289 |
| 39 | 298 |
| 40 | 303 |
| 41 | 324 |
| 42 | 339 |
| 43 | 343 |
| 44 | 357 |
| 45 | 361 |
| 46 | 375 |
| 47 | 381 |
| 48 | 387 |
| 49 | 393 |
| 50 | 411 |
| 51 | 417 |
| 52 | 423 |
| 53 | 441 |
| 54 | 447 |
| 55 | 453 |
| 56 | 477 |
[4,9,15,25,27,34,36,49,51,57,63,68,75,81,87,93, 111,121,125,129,132,138,141,153,155,159,169,177, 237,249,258,261,264,267,274,276,279,289,298,303, 324,339,343,357,361,375,381,387,393,411,417,423, 441,447,453,477] |