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 | 5926535897 |
| 2 | 4197169399 |
| 3 | 1693993751 |
| 4 | 7510582097 |
| 5 | 4825342117 |
| 6 | 5822317253 |
| 7 | 2841027019 |
| 8 | 8521105559 |
| 9 | 8954930381 |
| 10 | 4756482337 |
| 11 | 2712019091 |
| 12 | 5432664821 |
| 13 | 3266482133 |
| 14 | 6072602491 |
| 15 | 5588174881 |
| 16 | 8815209209 |
| 17 | 6282925409 |
| 18 | 2540917153 |
| 19 | 5903600113 |
| 20 | 8204665213 |
| 21 | 3841469519 |