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 | 233 |
| 3 | 239 |
| 4 | 263 |
| 5 | 281 |
| 6 | 359 |
| 7 | 431 |
| 8 | 569 |
| 9 | 743 |
| 10 | 809 |
| 11 | 953 |
| 12 | 1031 |
| 13 | 1289 |
| 14 | 1481 |
| 15 | 1583 |
| 16 | 1913 |
| 17 | 2081 |
| 18 | 2087 |
| 19 | 2111 |
| 20 | 2129 |
| 21 | 2153 |
| 22 | 2207 |
| 23 | 2417 |
| 24 | 2543 |
| 25 | 2591 |
| 26 | 2657 |
| 27 | 2801 |
| 28 | 2879 |
| 29 | 2969 |
| 30 | 3119 |
| 31 | 3137 |
| 32 | 3329 |
| 33 | 3593 |
| 34 | 3761 |
| 35 | 3929 |
| 36 | 4001 |
| 37 | 4127 |
| 38 | 4391 |
| 39 | 4463 |
| 40 | 4649 |
| 41 | 4817 |
| 42 | 4967 |