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 | 139 |
| 2 | 181 |
| 3 | 241 |
| 4 | 283 |
| 5 | 337 |
| 6 | 409 |
| 7 | 421 |
| 8 | 547 |
| 9 | 577 |
| 10 | 631 |
| 11 | 691 |
| 12 | 709 |
| 13 | 787 |
| 14 | 811 |
| 15 | 829 |
| 16 | 887 |
| 17 | 919 |
| 18 | 1021 |
| 19 | 1039 |
| 20 | 1051 |
| 21 | 1153 |
| 22 | 1171 |
| 23 | 1249 |
| 24 | 1399 |
| 25 | 1471 |
| 26 | 1627 |
| 27 | 1637 |
| 28 | 1699 |
| 29 | 1723 |
| 30 | 1801 |
| 31 | 1879 |
| 32 | 2017 |
| 33 | 2029 |
| 34 | 2053 |
| 35 | 2089 |
| 36 | 2143 |
| 37 | 2521 |
| 38 | 2647 |
| 39 | 2719 |
| 40 | 2731 |
| 41 | 2767 |
| 42 | 2887 |
| 43 | 2917 |
| 44 | 3001 |
| 45 | 3089 |
| 46 | 3109 |
| 47 | 3361 |
| 48 | 3413 |
| 49 | 3517 |
| 50 | 3547 |
| 51 | 3571 |