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 | 3 |
| 3 | 9 |
| 4 | 25 |
| 5 | 60 |
| 6 | 126 |
| 7 | 238 |
| 8 | 414 |
| 9 | 675 |
| 10 | 1045 |
| 11 | 1551 |
| 12 | 2223 |
| 13 | 3094 |
| 14 | 4200 |
| 15 | 5580 |
| 16 | 7276 |
| 17 | 9333 |
| 18 | 11799 |
| 19 | 14725 |
| 20 | 18165 |
| 21 | 22176 |
| 22 | 26818 |
| 23 | 32154 |
| 24 | 38250 |
| 25 | 45175 |
| 26 | 53001 |
| 27 | 61803 |
| 28 | 71659 |
| 29 | 82650 |
| 30 | 94860 |
| 31 | 108376 |
| 32 | 123288 |
| 33 | 139689 |
| 34 | 157675 |
| 35 | 177345 |
| 36 | 198801 |
| 37 | 222148 |
| 38 | 247494 |