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 | 0 |
| 2 | 20 |
| 3 | 820 |
| 4 | 1200 |
| 5 | 3440 |
| 6 | 4180 |
| 7 | 7860 |
| 8 | 8960 |
| 9 | 14080 |
| 10 | 15540 |
| 11 | 22100 |
| 12 | 23920 |
| 13 | 31920 |
| 14 | 34100 |
| 15 | 43540 |
| 16 | 46080 |
| 17 | 56960 |
| 18 | 59860 |
| 19 | 72180 |
| 20 | 75440 |
| 21 | 89200 |
| 22 | 92820 |
| 23 | 108020 |
| 24 | 112000 |
| 25 | 128640 |
| 26 | 132980 |
| 27 | 151060 |
| 28 | 155760 |
| 29 | 175280 |
| 30 | 180340 |
| 31 | 201300 |
| 32 | 206720 |
| 33 | 229120 |
| 34 | 234900 |
| 35 | 258740 |