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 | 272 |
| 2 | 2763 |
| 3 | 13024 |
| 4 | 42125 |
| 5 | 108576 |
| 6 | 240247 |
| 7 | 476288 |
| 8 | 869049 |
| 9 | 1486000 |
| 10 | 2411651 |
| 11 | 3749472 |
| 12 | 5623813 |
| 13 | 8181824 |
| 14 | 11595375 |
| 15 | 16062976 |
| 16 | 21811697 |
| 17 | 29099088 |
| 18 | 38215099 |
| 19 | 49484000 |
| 20 | 63266301 |
| 21 | 79960672 |
| 22 | 100005863 |
| 23 | 123882624 |
| 24 | 152115625 |
| 25 | 185275376 |
| 26 | 223980147 |
| 27 | 268897888 |
| 28 | 320748149 |