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 | 3141592622 |
| 3 | 1588972055 |
| 4 | 1279602700 |
| 5 | 1481914909 |
| 6 | 3913565466 |
| 7 | 2610266515 |
| 8 | 1903286488 |
| 9 | 936717817 |
| 10 | 3104230086 |
| 11 | 4091513039 |
| 12 | 469042788 |
| 13 | 2999973781 |
| 14 | 54420274 |
| 15 | 4053162955 |
| 16 | 3383133360 |
| 17 | 3380310769 |
| 18 | 456637022 |
| 19 | 465319559 |
| 20 | 936566716 |
| 21 | 2283027469 |
| 22 | 2613197898 |
| 23 | 63902979 |