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 | 1 |
| 1 | -4 |
| 2 | 41 |
| 3 | 316 |
| 4 | 1121 |
| 5 | 2876 |
| 6 | 6121 |
| 7 | 11516 |
| 8 | 19841 |
| 9 | 31996 |
| 10 | 49001 |
| 11 | 71996 |
| 12 | 102241 |
| 13 | 141116 |
| 14 | 190121 |
| 15 | 250876 |
| 16 | 325121 |
| 17 | 414716 |
| 18 | 521641 |
| 19 | 647996 |
| 20 | 796001 |
| 21 | 967996 |
| 22 | 1166441 |
| 23 | 1393916 |
| 24 | 1653121 |
| 25 | 1946876 |
| 26 | 2278121 |
| 27 | 2649916 |
| 28 | 3065441 |
| 29 | 3527996 |
| 30 | 4041001 |
| 31 | 4607996 |
| 32 | 5232641 |
| 33 | 5918716 |