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 | 360287471 |
| 2 | 526059563 |
| 3 | 132328627 |
| 4 | 862794349 |
| 5 | 573834187 |
| 6 | 383418793 |
| 7 | 879307021 |
| 8 | 154089149 |
| 9 | 675092447 |
| 10 | 509244761 |
| 11 | 234544243 |
| 12 | 907774499 |
| 13 | 744992069 |
| 14 | 551702761 |
| 15 | 860626133 |
| 16 | 331384583 |
| 17 | 297606737 |
| 18 | 976067371 |
| 19 | 113200709 |
| 20 | 704723069 |
| 21 | 108657463 |