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 | 13 |
| 2 | 293 |
| 3 | 10613 |
| 4 | 18773 |
| 5 | 76733 |
| 6 | 97973 |
| 7 | 458333 |
| 8 | 552053 |
| 9 | 1247693 |
| 10 | 2647133 |
| 11 | 4012013 |
| 12 | 4592453 |
| 13 | 11607653 |
| 14 | 13520333 |
| 15 | 20097293 |
| 16 | 25877573 |
| 17 | 34845413 |
| 18 | 51509333 |
| 19 | 53772893 |
| 20 | 65399573 |
| 21 | 65496653 |
| 22 | 66373613 |
| 23 | 72880373 |
| 24 | 73496333 |
| 25 | 86359853 |
| 26 | 89737733 |