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 | 127 |
| 2 | 709 |
| 3 | 5381 |
| 4 | 15299 |
| 5 | 52711 |
| 6 | 87803 |
| 7 | 167449 |
| 8 | 219613 |
| 9 | 318211 |
| 10 | 506683 |
| 11 | 648391 |
| 12 | 919913 |
| 13 | 1128889 |
| 14 | 1254739 |
| 15 | 1471343 |
| 16 | 1828669 |
| 17 | 2269733 |
| 18 | 2364361 |
| 19 | 3042161 |
| 20 | 3338989 |
| 21 | 3509299 |
| 22 | 4030889 |
| 23 | 4535189 |
| 24 | 5054303 |
| 25 | 5823667 |
| 26 | 6478961 |
| 27 | 6816631 |