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 | 41 |
| 2 | 313 |
| 3 | 1201 |
| 4 | 3281 |
| 5 | 7321 |
| 6 | 14281 |
| 7 | 25313 |
| 8 | 41761 |
| 9 | 65161 |
| 10 | 97241 |
| 11 | 139921 |
| 12 | 195313 |
| 13 | 265721 |
| 14 | 353641 |
| 15 | 461761 |
| 16 | 592961 |
| 17 | 750313 |
| 18 | 937081 |
| 19 | 1156721 |
| 20 | 1412881 |
| 21 | 1709401 |
| 22 | 2050313 |
| 23 | 2439841 |
| 24 | 2882401 |
| 25 | 3382601 |
| 26 | 3945241 |
| 27 | 4575313 |
| 28 | 5278001 |
| 29 | 6058681 |