This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 7 |
| 3 | 23 |
| 4 | 59 |
| 5 | 61 |
| 6 | 211 |
| 7 | 337 |
| 8 | 503 |
| 9 | 719 |
| 10 | 991 |
| 11 | 1319 |
| 12 | 1321 |
| 13 | 2729 |
| 14 | 2731 |
| 15 | 3359 |
| 16 | 3361 |
| 17 | 4079 |
| 18 | 5813 |
| 19 | 6841 |
| 20 | 9239 |
| 21 | 9241 |
| 22 | 10627 |
| 23 | 12143 |
| 24 | 13799 |
| 25 | 15601 |
| 26 | 17551 |
| 27 | 24359 |
| 28 | 29759 |
| 29 | 29761 |
| 30 | 42839 |
| 31 | 42841 |
| 32 | 46619 |
| 33 | 54833 |
| 34 | 59281 |
| 35 | 68879 |
| 36 | 68881 |
| 37 | 74047 |
| 38 | 91079 |
| 39 | 91081 |
| 40 | 110543 |
| 41 | 124951 |
| 42 | 140557 |