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 | 8 |
| 4 | 64 |
| 5 | 292 |
| 6 | 916 |
| 7 | 2344 |
| 8 | 5048 |
| 9 | 10096 |
| 10 | 18296 |
| 11 | 31400 |
| 12 | 50752 |
| 13 | 79308 |
| 14 | 118876 |
| 15 | 173768 |
| 16 | 246096 |
| 17 | 342256 |
| 18 | 465064 |
| 19 | 622904 |
| 20 | 818552 |
| 21 | 1063756 |
| 22 | 1361564 |
| 23 | 1725432 |
| 24 | 2159384 |
| 25 | 2682944 |
| 26 | 3298568 |
| 27 | 4027776 |
| 28 | 4873600 |