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) |
|---|---|
| 0 | 1 |
| 1 | 8 |
| 2 | 67 |
| 3 | 584 |
| 4 | 5257 |
| 5 | 48488 |
| 6 | 455131 |
| 7 | 4324328 |
| 8 | 41426257 |
| 9 | 399036104 |
| 10 | 3857575987 |
| 11 | 37380013448 |
| 12 | 362768079961 |
| 13 | 3524108459048 |
| 14 | 34256882467147 |
| 15 | 333139503472424 |
| 16 | 3240562225062817 |
| 17 | 31527485889187208 |
| 18 | 306765478498163491 |