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 | 2 |
| 2 | 37 |
| 3 | 43 |
| 4 | 73 |
| 5 | 101 |
| 6 | 457 |
| 7 | 1201 |
| 8 | 2221 |
| 9 | 4241 |
| 10 | 6673 |
| 11 | 49993 |
| 12 | 65827 |
| 13 | 131437 |
| 14 | 262469 |
| 15 | 262897 |
| 16 | 1181017 |
| 17 | 2098249 |
| 18 | 4195273 |
| 19 | 4195777 |
| 20 | 4720273 |
| 21 | 8389237 |
| 22 | 8393929 |
| 23 | 8652433 |
| 24 | 16778089 |
| 25 | 16909969 |
| 26 | 33555289 |
| 27 | 33556681 |
| 28 | 33621649 |
| 29 | 67110601 |