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 | 2 |
| 2 | 3 |
| 3 | 5 |
| 4 | 13 |
| 5 | 37 |
| 6 | 61 |
| 7 | 157 |
| 8 | 421 |
| 9 | 541 |
| 10 | 613 |
| 11 | 673 |
| 12 | 877 |
| 13 | 1153 |
| 14 | 1201 |
| 15 | 1213 |
| 16 | 1381 |
| 17 | 1621 |
| 18 | 1873 |
| 19 | 1933 |
| 20 | 2003 |
| 21 | 2017 |
| 22 | 2027 |
| 23 | 2039 |
| 24 | 2063 |
| 25 | 2081 |
| 26 | 2087 |
| 27 | 2099 |
| 28 | 2129 |
| 29 | 2143 |
| 30 | 2179 |
| 31 | 2207 |
| 32 | 2239 |
| 33 | 2243 |
| 34 | 2251 |
| 35 | 2267 |
| 36 | 2273 |
| 37 | 2281 |
| 38 | 2351 |
| 39 | 2393 |
| 40 | 2399 |
| 41 | 2411 |
| 42 | 2423 |
| 43 | 2441 |
| 44 | 2447 |
| 45 | 2459 |
| 46 | 2467 |
| 47 | 2503 |