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 | 1 |
| 2 | 3 |
| 3 | 7 |
| 4 | 11 |
| 5 | 13 |
| 6 | 19 |
| 7 | 103 |
| 8 | 391 |
| 9 | 1811 |
| 10 | 3589 |
| 11 | 5147 |
| 12 | 6683 |
| 13 | 21883 |
| 14 | 46159 |
| 15 | 64133 |
| 16 | 149839 |
| 17 | 151013 |
| 18 | 318377 |
| 19 | 650543 |
| 20 | 1279211 |
| 21 | 42559939 |
| 22 | 43120271 |
| 23 | 55201423 |
| 24 | 198069181 |
| 25 | 265237811 |
| 26 | 929670011 |
| 27 | 930260173 |
| 28 | 1879562281 |
| 29 | 3320654641 |
| 30 | 5390681357 |
| 31 | 52883996713 |
| 32 | 78842843063 |
| 33 | 250434427519 |