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 | 113 |
| 2 | 127 |
| 3 | 145 |
| 4 | 533 |
| 5 | 635 |
| 6 | 757 |
| 7 | 3085 |
| 8 | 3683 |
| 9 | 4397 |
| 10 | 17977 |
| 11 | 21463 |
| 12 | 25625 |
| 13 | 104777 |
| 14 | 125095 |
| 15 | 149353 |
| 16 | 610685 |
| 17 | 729107 |
| 18 | 870493 |
| 19 | 3559333 |
| 20 | 4249547 |
| 21 | 5073605 |
| 22 | 20745313 |
| 23 | 24768175 |
| 24 | 29571137 |
| 25 | 120912545 |
| 26 | 144359503 |
| 27 | 172353217 |
| 28 | 704729957 |
| 29 | 841388843 |
| 30 | 1004548165 |