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 | 710100 |
| 2 | 710101 |
| 3 | 1129019 |
| 4 | 3204765 |
| 5 | 3204766 |
| 6 | 4098542 |
| 7 | 4640063 |
| 8 | 5524958 |
| 9 | 9831707 |
| 10 | 10985154 |
| 11 | 12376276 |
| 12 | 12469058 |
| 13 | 12469059 |
| 14 | 13230524 |
| 15 | 13247803 |
| 16 | 15239977 |
| 17 | 18216168 |
| 18 | 18216169 |
| 19 | 19175682 |
| 20 | 19175683 |
| 21 | 22562616 |
| 22 | 23375381 |
| 23 | 24287401 |
| 24 | 25841185 |
| 25 | 27090294 |
| 26 | 28715870 |
| 27 | 29796271 |
| 28 | 29956363 |