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 | 5 |
| 1 | 37 |
| 2 | 317 |
| 3 | 3149 |
| 4 | 31417 |
| 5 | 314197 |
| 6 | 3141549 |
| 7 | 31416025 |
| 8 | 314159053 |
| 9 | 3141592409 |
| 10 | 31415925457 |
| 11 | 314159264013 |
| 12 | 3141592649625 |
| 13 | 31415926532017 |
| 14 | 314159265350589 |
| 15 | 3141592653588533 |
| 16 | 31415926535867961 |
| 17 | 314159265358987341 |
| 18 | 3141592653589764829 |
| 19 | 31415926535897744669 |