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 | 37 |
| 3 | 71 |
| 4 | 139 |
| 5 | 173 |
| 6 | 241 |
| 7 | 479 |
| 8 | 547 |
| 9 | 683 |
| 10 | 751 |
| 11 | 853 |
| 12 | 887 |
| 13 | 1091 |
| 14 | 1193 |
| 15 | 1499 |
| 16 | 1567 |
| 17 | 1601 |
| 18 | 1669 |
| 19 | 1873 |
| 20 | 1907 |
| 21 | 2111 |
| 22 | 2179 |
| 23 | 2213 |
| 24 | 2281 |
| 25 | 2383 |
| 26 | 2417 |
| 27 | 2621 |
| 28 | 2689 |
| 29 | 2791 |
| 30 | 2927 |
| 31 | 3301 |
| 32 | 3539 |
| 33 | 3607 |
| 34 | 3709 |
| 35 | 3947 |
| 36 | 4049 |
| 37 | 4219 |
| 38 | 4253 |
| 39 | 4423 |
| 40 | 4457 |
| 41 | 4729 |
| 42 | 4831 |
| 43 | 4933 |
| 44 | 4967 |
| 45 | 5171 |