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 | 1 |
| 2 | 3 |
| 3 | 5 |
| 4 | 7 |
| 5 | 15 |
| 6 | 33 |
| 7 | 41 |
| 8 | 57 |
| 9 | 69 |
| 10 | 75 |
| 11 | 77 |
| 12 | 131 |
| 13 | 133 |
| 14 | 153 |
| 15 | 247 |
| 16 | 305 |
| 17 | 351 |
| 18 | 409 |
| 19 | 471 |
| 20 | 1251 |
| 21 | 1259 |
| 22 | 2253 |
| 23 | 2411 |
| 24 | 2425 |
| 25 | 2699 |
| 26 | 3221 |
| 27 | 4099 |
| 28 | 4173 |
| 29 | 4291 |
| 30 | 4905 |
| 31 | 5349 |
| 32 | 6723 |
| 33 | 7143 |
| 34 | 7505 |
| 35 | 10539 |
| 36 | 10557 |
| 37 | 12099 |
| 38 | 17373 |
| 39 | 23721 |
| 40 | 27895 |
| 41 | 33801 |
| 42 | 35519 |
| 43 | 45927 |
| 44 | 63589 |
| 45 | 73287 |
| 46 | 96933 |
| 47 | 106659 |
| 48 | 218043 |
| 49 | 253047 |
| 50 | 397941 |
| 51 | 651015 |