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 | 1 |
| 3 | 13 |
| 4 | 17 |
| 5 | 189 |
| 6 | 205 |
| 7 | 257 |
| 8 | 273 |
| 9 | 3005 |
| 10 | 3069 |
| 11 | 3277 |
| 12 | 3341 |
| 13 | 4033 |
| 14 | 4097 |
| 15 | 4305 |
| 16 | 4369 |
| 17 | 48061 |
| 18 | 48317 |
| 19 | 49149 |
| 20 | 49405 |
| 21 | 52173 |
| 22 | 52429 |
| 23 | 53261 |
| 24 | 53517 |
| 25 | 64449 |
| 26 | 64705 |
| 27 | 65537 |
| 28 | 65793 |
| 29 | 68561 |
| 30 | 68817 |
| 31 | 69649 |
| 32 | 69905 |
| 33 | 768957 |
| 34 | 769981 |
| 35 | 773309 |
| 36 | 774333 |
| 37 | 785405 |
| 38 | 786429 |
| 39 | 789757 |
| 40 | 790781 |
| 41 | 834509 |