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 | 509203 |
| 2 | 1330207 |
| 3 | 2251349 |
| 4 | 2554843 |
| 5 | 2924861 |
| 6 | 3177553 |
| 7 | 3292241 |
| 8 | 3580901 |
| 9 | 3661529 |
| 10 | 3661543 |
| 11 | 4384979 |
| 12 | 6055001 |
| 13 | 7576559 |
| 14 | 7629217 |
| 15 | 8086751 |
| 16 | 8643209 |
| 17 | 9053711 |
| 18 | 9203917 |
| 19 | 9545351 |
| 20 | 10219379 |
| 21 | 10645867 |
| 22 | 10913233 |
| 23 | 10913681 |
| 24 | 11694013 |
| 25 | 11942443 |
| 26 | 13161283 |
| 27 | 14608183 |
| 28 | 15627133 |