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 | 0 |
| 2 | 64 |
| 3 | 129 |
| 4 | 259 |
| 5 | 519 |
| 6 | 1039 |
| 7 | 2079 |
| 8 | 4159 |
| 9 | 8192 |
| 10 | 8319 |
| 11 | 16385 |
| 12 | 16512 |
| 13 | 16639 |
| 14 | 32771 |
| 15 | 33025 |
| 16 | 33152 |
| 17 | 33279 |
| 18 | 65543 |
| 19 | 66051 |
| 20 | 66305 |
| 21 | 66432 |
| 22 | 66559 |
| 23 | 131087 |
| 24 | 132103 |
| 25 | 132611 |
| 26 | 132865 |
| 27 | 132992 |
| 28 | 133119 |
| 29 | 262175 |
| 30 | 264207 |
| 31 | 265223 |
| 32 | 265731 |
| 33 | 265985 |
| 34 | 266112 |
| 35 | 266239 |
| 36 | 524351 |
| 37 | 528415 |
| 38 | 530447 |
| 39 | 531463 |
| 40 | 531971 |
| 41 | 532225 |
| 42 | 532352 |
| 43 | 532479 |
| 44 | 1048576 |
| 45 | 1048703 |