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 | 4 |
| 2 | 6 |
| 3 | 10 |
| 4 | 22 |
| 5 | 46 |
| 6 | 58 |
| 7 | 82 |
| 8 | 106 |
| 9 | 166 |
| 10 | 178 |
| 11 | 226 |
| 12 | 262 |
| 13 | 346 |
| 14 | 358 |
| 15 | 382 |
| 16 | 466 |
| 17 | 478 |
| 18 | 502 |
| 19 | 562 |
| 20 | 586 |
| 21 | 718 |
| 22 | 838 |
| 23 | 862 |
| 24 | 886 |
| 25 | 982 |
| 26 | 1018 |
| 27 | 1186 |
| 28 | 1282 |
| 29 | 1306 |
| 30 | 1318 |
| 31 | 1366 |
| 32 | 1438 |
| 33 | 1486 |
| 34 | 1522 |
| 35 | 1618 |
| 36 | 1822 |
| 37 | 1906 |
| 38 | 2026 |
| 39 | 2038 |
| 40 | 2062 |
| 41 | 2098 |
| 42 | 2206 |
| 43 | 2446 |
| 44 | 2458 |
| 45 | 2578 |
| 46 | 2818 |
| 47 | 2878 |
| 48 | 2902 |