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 | 5 |
| 2 | 47 |
| 3 | 157 |
| 4 | 227 |
| 5 | 317 |
| 6 | 337 |
| 7 | 557 |
| 8 | 2027 |
| 9 | 3037 |
| 10 | 3217 |
| 11 | 5147 |
| 12 | 6047 |
| 13 | 7457 |
| 14 | 12527 |
| 15 | 13757 |
| 16 | 14657 |
| 17 | 20357 |
| 18 | 21017 |
| 19 | 23747 |
| 20 | 32057 |
| 21 | 35027 |
| 22 | 47417 |
| 23 | 57047 |
| 24 | 84137 |
| 25 | 115727 |
| 26 | 125627 |
| 27 | 127247 |
| 28 | 136337 |
| 29 | 147137 |
| 30 | 149027 |
| 31 | 212057 |
| 32 | 219937 |
| 33 | 225257 |
| 34 | 230017 |
| 35 | 240047 |
| 36 | 242357 |
| 37 | 264137 |
| 38 | 284117 |
| 39 | 304127 |