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 | 7 |
| 3 | 23 |
| 4 | 31 |
| 5 | 71 |
| 6 | 79 |
| 7 | 151 |
| 8 | 199 |
| 9 | 223 |
| 10 | 239 |
| 11 | 263 |
| 12 | 311 |
| 13 | 359 |
| 14 | 463 |
| 15 | 479 |
| 16 | 599 |
| 17 | 743 |
| 18 | 751 |
| 19 | 823 |
| 20 | 863 |
| 21 | 911 |
| 22 | 991 |
| 23 | 1031 |
| 24 | 1063 |
| 25 | 1103 |
| 26 | 1151 |
| 27 | 1303 |
| 28 | 1399 |
| 29 | 1471 |
| 30 | 1583 |
| 31 | 1759 |
| 32 | 1823 |
| 33 | 1831 |
| 34 | 1879 |
| 35 | 1999 |
| 36 | 2111 |
| 37 | 2143 |
| 38 | 2311 |
| 39 | 2383 |
| 40 | 2503 |
| 41 | 2543 |
| 42 | 2551 |
| 43 | 2663 |
| 44 | 2671 |
| 45 | 2719 |
| 46 | 3023 |
| 47 | 3079 |
| 48 | 3119 |
| 49 | 3191 |
| 50 | 3391 |
| 51 | 3511 |