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 | 37 |
| 2 | 67 |
| 3 | 233 |
| 4 | 467 |
| 5 | 1307 |
| 6 | 4637 |
| 7 | 15601 |
| 8 | 54437 |
| 9 | 184279 |
| 10 | 616391 |
| 11 | 2009011 |
| 12 | 6568151 |
| 13 | 21341821 |
| 14 | 68826689 |
| 15 | 220682383 |
| 16 | 704456869 |