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 | 21372 |
| 2 | 119911 |
| 3 | 229912 |
| 4 | 2971137 |
| 5 | 3719193 |
| 6 | 13731373 |
| 7 | 16749933 |
| 8 | 31373137 |
| 9 | 183171409 |
| 10 | 221397372 |
| 11 | 238903323 |
| 12 | 241153517 |
| 13 | 254724772 |
| 14 | 271141332 |
| 15 | 331191135 |
| 16 | 1153115117 |
| 17 | 1190911909 |
| 18 | 1453312395 |
| 19 | 2511176437 |
| 20 | 2923699119 |
| 21 | 2971193115 |
| 22 | 3124516195 |