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 | 727 |
| 2 | 3373 |
| 3 | 6857 |
| 4 | 19681 |
| 5 | 29789 |
| 6 | 50651 |
| 7 | 300761 |
| 8 | 753569 |
| 9 | 970297 |
| 10 | 1295027 |
| 11 | 1771559 |
| 12 | 2146687 |
| 13 | 2460373 |
| 14 | 3048623 |
| 15 | 3442949 |
| 16 | 4492123 |
| 17 | 6539201 |
| 18 | 6751267 |
| 19 | 8120599 |
| 20 | 8869741 |
| 21 | 9393929 |
| 22 | 10218311 |
| 23 | 13997519 |
| 24 | 17373977 |
| 25 | 18609623 |
| 26 | 19034161 |
| 27 | 21253931 |