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 | 9 |
| 5 | 11 |
| 6 | 19 |
| 7 | 21 |
| 8 | 31 |
| 9 | 37 |
| 10 | 51 |
| 11 | 53 |
| 12 | 79 |
| 13 | 81 |
| 14 | 105 |
| 15 | 121 |
| 16 | 153 |
| 17 | 155 |
| 18 | 207 |
| 19 | 209 |
| 20 | 267 |
| 21 | 293 |
| 22 | 349 |
| 23 | 351 |
| 24 | 453 |
| 25 | 465 |
| 26 | 549 |
| 27 | 587 |
| 28 | 699 |
| 29 | 701 |
| 30 | 875 |
| 31 | 877 |
| 32 | 1031 |
| 33 | 1089 |
| 34 | 1247 |
| 35 | 1279 |
| 36 | 1547 |
| 37 | 1549 |
| 38 | 1761 |
| 39 | 1847 |
| 40 | 2137 |
| 41 | 2139 |
| 42 | 2529 |
| 43 | 2531 |
| 44 | 2887 |
| 45 | 3041 |
| 46 | 3395 |
| 47 | 3397 |
| 48 | 3973 |
| 49 | 3995 |
| 50 | 4501 |