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 | 5 |
| 1 | 6 |
| 2 | 11 |
| 3 | 61 |
| 4 | 316 |
| 5 | 377 |
| 6 | 4463 |
| 7 | 4840 |
| 8 | 9303 |
| 9 | 51355 |
| 10 | 60658 |
| 11 | 1628463 |
| 12 | 3317584 |
| 13 | 38121887 |
| 14 | 41439471 |
| 15 | 79561358 |
| 16 | 200562187 |
| 17 | 280123545 |
| 18 | 760809277 |
| 19 | 73317814137 |
| 20 | 74078623414 |
| 21 | 147396437551 |
| 22 | 221475060965 |
| 23 | 368871498516 |
| 24 | 590346559481 |
| 25 | 226471603779739 |
| 26 | 1359419969237915 |