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 | 3 |
| 2 | 5 |
| 3 | 11 |
| 4 | 19 |
| 5 | 29 |
| 6 | 79 |
| 7 | 101 |
| 8 | 349 |
| 9 | 409 |
| 10 | 449 |
| 11 | 521 |
| 12 | 569 |
| 13 | 571 |
| 14 | 661 |
| 15 | 739 |
| 16 | 991 |
| 17 | 1091 |
| 18 | 1129 |
| 19 | 1181 |
| 20 | 1459 |
| 21 | 1489 |
| 22 | 1531 |
| 23 | 1901 |
| 24 | 2269 |
| 25 | 2281 |
| 26 | 2341 |
| 27 | 2351 |
| 28 | 2389 |
| 29 | 2549 |
| 30 | 2659 |
| 31 | 2671 |
| 32 | 2719 |
| 33 | 2729 |
| 34 | 2731 |
| 35 | 3109 |
| 36 | 4049 |
| 37 | 4349 |
| 38 | 5279 |
| 39 | 5431 |
| 40 | 5471 |
| 41 | 5531 |
| 42 | 5591 |
| 43 | 5669 |
| 44 | 6329 |
| 45 | 6359 |
| 46 | 6871 |
| 47 | 7559 |
| 48 | 7741 |