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 | 1 |
| 2 | 183 |
| 3 | 905 |
| 4 | 2527 |
| 5 | 5409 |
| 6 | 9911 |
| 7 | 16393 |
| 8 | 25215 |
| 9 | 36737 |
| 10 | 51319 |
| 11 | 69321 |
| 12 | 91103 |
| 13 | 117025 |
| 14 | 147447 |
| 15 | 182729 |
| 16 | 223231 |
| 17 | 269313 |
| 18 | 321335 |
| 19 | 379657 |
| 20 | 444639 |
| 21 | 516641 |
| 22 | 596023 |
| 23 | 683145 |
| 24 | 778367 |
| 25 | 882049 |
| 26 | 994551 |
| 27 | 1116233 |
| 28 | 1247455 |
| 29 | 1388577 |
| 30 | 1539959 |
| 31 | 1701961 |
| 32 | 1874943 |
| 33 | 2059265 |
| 34 | 2255287 |