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 | 0 |
| 3 | 0 |
| 4 | 20 |
| 5 | 92 |
| 6 | 260 |
| 7 | 580 |
| 8 | 1120 |
| 9 | 1960 |
| 10 | 3192 |
| 11 | 4920 |
| 12 | 7260 |
| 13 | 10340 |
| 14 | 14300 |
| 15 | 19292 |
| 16 | 25480 |
| 17 | 33040 |
| 18 | 42160 |
| 19 | 53040 |
| 20 | 65892 |
| 21 | 80940 |
| 22 | 98420 |
| 23 | 118580 |
| 24 | 141680 |
| 25 | 167992 |
| 26 | 197800 |
| 27 | 231400 |
| 28 | 269100 |
| 29 | 311220 |
| 30 | 358092 |
| 31 | 410060 |
| 32 | 467480 |
| 33 | 530720 |
| 34 | 600160 |
| 35 | 676192 |
| 36 | 759220 |
| 37 | 849660 |