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 | 81517 |
| 2 | 202129 |
| 3 | 6091109 |
| 4 | 19180181 |
| 5 | 68285293 |
| 6 | 92525533 |
| 7 | 120391409 |
| 8 | 145408433 |
| 9 | 168775793 |
| 10 | 205828853 |
| 11 | 225272353 |
| 12 | 261380461 |
| 13 | 300589661 |
| 14 | 5598401009 |
| 15 | 6458121037 |
| 16 | 7059921217 |
| 17 | 7999601249 |
| 18 | 8536123613 |
| 19 | 19521082117 |
| 20 | 22814351453 |