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 | 213245 |
| 2 | 222299 |
| 3 | 222300 |
| 4 | 493647 |
| 5 | 511304 |
| 6 | 564317 |
| 7 | 730833 |
| 8 | 747413 |
| 9 | 1067285 |
| 10 | 1096077 |
| 11 | 1361157 |
| 12 | 2116963 |
| 13 | 2272190 |
| 14 | 2356344 |
| 15 | 2418533 |
| 16 | 2418534 |
| 17 | 2540169 |
| 18 | 2960664 |
| 19 | 3019042 |
| 20 | 3019043 |
| 21 | 3129868 |
| 22 | 3147134 |
| 23 | 3147135 |
| 24 | 3186070 |
| 25 | 3206838 |
| 26 | 3604524 |
| 27 | 3604525 |
| 28 | 3731764 |
| 29 | 3754082 |
| 30 | 3908785 |