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 | 1 |
| 2 | 97 |
| 3 | 577 |
| 4 | 1921 |
| 5 | 4801 |
| 6 | 10081 |
| 7 | 18817 |
| 8 | 32257 |
| 9 | 51841 |
| 10 | 79201 |
| 11 | 116161 |
| 12 | 164737 |
| 13 | 227137 |
| 14 | 305761 |
| 15 | 403201 |
| 16 | 522241 |
| 17 | 665857 |
| 18 | 837217 |
| 19 | 1039681 |
| 20 | 1276801 |
| 21 | 1552321 |
| 22 | 1870177 |
| 23 | 2234497 |
| 24 | 2649601 |
| 25 | 3120001 |
| 26 | 3650401 |
| 27 | 4245697 |
| 28 | 4910977 |
| 29 | 5651521 |