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 | 1 |
| 3 | 97 |
| 4 | 49 |
| 5 | 769 |
| 6 | 289 |
| 7 | 2977 |
| 8 | 961 |
| 9 | 8161 |
| 10 | 2401 |
| 11 | 18241 |
| 12 | 5041 |
| 13 | 35617 |
| 14 | 9409 |
| 15 | 63169 |
| 16 | 16129 |
| 17 | 104257 |
| 18 | 25921 |
| 19 | 162721 |
| 20 | 39601 |
| 21 | 242881 |
| 22 | 58081 |
| 23 | 349537 |
| 24 | 82369 |
| 25 | 487969 |
| 26 | 113569 |
| 27 | 663937 |
| 28 | 152881 |
| 29 | 883681 |
| 30 | 201601 |
| 31 | 1153921 |
| 32 | 261121 |
| 33 | 1481857 |
| 34 | 332929 |
| 35 | 1875169 |
| 36 | 418609 |
| 37 | 2342017 |
| 38 | 519841 |
| 39 | 2891041 |