| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 4 |
| 3 | 7 |
| 4 | 13 |
| 5 | 19 |
| 6 | 31 |
| 7 | 37 |
| 8 | 49 |
| 9 | 55 |
| 10 | 67 |
| 11 | 85 |
| 12 | 91 |
| 13 | 109 |
| 14 | 121 |
| 15 | 127 |
| 16 | 139 |
| 17 | 157 |
| 18 | 175 |
| 19 | 181 |
| 20 | 199 |
| 21 | 211 |
| 22 | 217 |
| 23 | 235 |
| 24 | 247 |
| 25 | 265 |
| 26 | 289 |
| 27 | 301 |
| 28 | 307 |
| 29 | 319 |
| 30 | 325 |
| 31 | 337 |
| 32 | 379 |
| 33 | 391 |
| 34 | 409 |
| 35 | 415 |
| 36 | 445 |
| 37 | 451 |
| 38 | 469 |
| 39 | 487 |
| 40 | 499 |
| 41 | 517 |
| 42 | 535 |
| 43 | 541 |
| 44 | 571 |
| 45 | 577 |
| 46 | 589 |
| 47 | 595 |
| 48 | 631 |
| 49 | 667 |
| 50 | 679 |
| 51 | 685 |
| 52 | 697 |
| 53 | 715 |
| 54 | 721 |
| 55 | 751 |
[1,4,7,13,19,31,37,49,55,67,85,91,109,121,127,139, 157,175,181,199,211,217,235,247,265,289,301,307, 319,325,337,379,391,409,415,445,451,469,487,499, 517,535,541,571,577,589,595,631,667,679,685,697, 715,721,751] |