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 | 76 |
| 2 | 526 |
| 3 | 6508 |
| 4 | 34228 |
| 5 | 324562 |
| 6 | 747004 |
| 7 | 2849576 |
| 8 | 4965266 |
| 9 | 12896050 |
| 10 | 41071144 |
| 11 | 57316082 |
| 12 | 138789292 |
| 13 | 231850328 |
| 14 | 294172382 |
| 15 | 458893426 |
| 16 | 836688844 |
| 17 | 1430252626 |
| 18 | 1689646684 |
| 19 | 2700843026 |
| 20 | 3609164734 |
| 21 | 4146921368 |
| 22 | 6155086706 |
| 23 | 7879211410 |
| 24 | 11169529016 |
| 25 | 17176506056 |
| 26 | 21022261804 |
| 27 | 23187646130 |