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 | 2984 |
| 4 | 68272 |
| 5 | 296360 |
| 6 | 722384 |
| 7 | 1335984 |
| 8 | 2129440 |
| 9 | 3102752 |
| 10 | 4255920 |
| 11 | 5588944 |
| 12 | 7101824 |
| 13 | 8794560 |
| 14 | 10667152 |
| 15 | 12719600 |
| 16 | 14951904 |
| 17 | 17364064 |
| 18 | 19956080 |
| 19 | 22727952 |
| 20 | 25679680 |
| 21 | 28811264 |
| 22 | 32122704 |
| 23 | 35614000 |
| 24 | 39285152 |
| 25 | 43136160 |
| 26 | 47167024 |