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 | 4 |
| 3 | 13 |
| 4 | 10 |
| 5 | 121 |
| 6 | 28 |
| 7 | 1093 |
| 8 | 82 |
| 9 | 757 |
| 10 | 244 |
| 11 | 88573 |
| 12 | 730 |
| 13 | 797161 |
| 14 | 2188 |
| 15 | 59293 |
| 16 | 6562 |
| 17 | 64570081 |
| 18 | 1036 |
| 19 | 581130733 |
| 20 | 2362 |
| 21 | 4785157 |
| 22 | 177148 |
| 23 | 47071589413 |
| 24 | 84253 |
| 25 | 3501192601 |
| 26 | 1594324 |
| 27 | 387440173 |
| 28 | 4782970 |
| 29 | 34315188682441 |
| 30 | 66124 |