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 | 0 |
| 1 | 210 |
| 2 | 66374 |
| 3 | 76933 |
| 4 | 294137 |
| 5 | 722571 |
| 6 | 741300 |
| 7 | 1023716 |
| 8 | 2412593 |
| 9 | 3959235 |
| 10 | 4022940 |
| 11 | 5090402 |
| 12 | 6351886 |
| 13 | 7821198 |
| 14 | 9653864 |
| 15 | 11808061 |
| 16 | 11814811 |
| 17 | 20427955 |
| 18 | 24190287 |
| 19 | 24239133 |
| 20 | 24245187 |
| 21 | 33518020 |
| 22 | 33532714 |
| 23 | 33536551 |
| 24 | 39060306 |
| 25 | 52476271 |
| 26 | 52480534 |
| 27 | 69255266 |
| 28 | 69265142 |
| 29 | 79091461 |
| 30 | 89980491 |
| 31 | 90147222 |