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 | 1 |
| 2 | 346 |
| 3 | 6219 |
| 4 | 36628 |
| 5 | 124405 |
| 6 | 316206 |
| 7 | 672511 |
| 8 | 1267624 |
| 9 | 2189673 |
| 10 | 3540610 |
| 11 | 5436211 |
| 12 | 8006076 |
| 13 | 11393629 |
| 14 | 15756118 |
| 15 | 21264615 |
| 16 | 28104016 |
| 17 | 36473041 |
| 18 | 46584234 |
| 19 | 58663963 |
| 20 | 72952420 |
| 21 | 89703621 |
| 22 | 109185406 |
| 23 | 131679439 |
| 24 | 157481208 |
| 25 | 186900025 |
| 26 | 220259026 |
| 27 | 257895171 |
| 28 | 300159244 |