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 | 12 |
| 2 | 60 |
| 3 | 220 |
| 4 | 612 |
| 5 | 1404 |
| 6 | 2812 |
| 7 | 5100 |
| 8 | 8580 |
| 9 | 13612 |
| 10 | 20604 |
| 11 | 30012 |
| 12 | 42340 |
| 13 | 58140 |
| 14 | 78012 |
| 15 | 102604 |
| 16 | 132612 |
| 17 | 168780 |
| 18 | 211900 |
| 19 | 262812 |
| 20 | 322404 |
| 21 | 391612 |
| 22 | 471420 |
| 23 | 562860 |
| 24 | 667012 |
| 25 | 785004 |
| 26 | 918012 |
| 27 | 1067260 |
| 28 | 1234020 |
| 29 | 1419612 |
| 30 | 1625404 |
| 31 | 1852812 |
| 32 | 2103300 |
| 33 | 2378380 |