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) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 4 |
| 3 | 8 |
| 4 | 61 |
| 5 | 32 |
| 6 | 64 |
| 7 | 821 |
| 8 | 652 |
| 9 | 521 |
| 10 | 4210 |
| 11 | 8420 |
| 12 | 9640 |
| 13 | 9821 |
| 14 | 86431 |
| 15 | 87632 |
| 16 | 66553 |
| 17 | 732110 |
| 18 | 644221 |
| 19 | 885422 |
| 20 | 8765410 |
| 21 | 9752210 |
| 22 | 9444310 |
| 23 | 8888630 |
| 24 | 77766211 |
| 25 | 55443332 |
| 26 | 88766410 |
| 27 | 877432211 |
| 28 | 866554432 |
| 29 | 987653210 |
| 30 | 8774432110 |
| 31 | 8876444321 |