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 | 909 |
| 4 | 2055 |
| 5 | 11925 |
| 6 | 145881 |
| 7 | 191079 |
| 8 | 254199 |
| 9 | 358875 |
| 10 | 490215 |
| 11 | 614241 |
| 12 | 642105 |
| 13 | 648261 |
| 14 | 689655 |
| 15 | 864159 |
| 16 | 959595 |
| 17 | 1030911 |
| 18 | 1047585 |
| 19 | 1056981 |
| 20 | 1150335 |
| 21 | 1366971 |
| 22 | 1406571 |
| 23 | 1669845 |
| 24 | 1746525 |
| 25 | 2299485 |
| 26 | 2357751 |
| 27 | 2491809 |
| 28 | 2494329 |
| 29 | 2629869 |
| 30 | 2876859 |
| 31 | 3162159 |
| 32 | 3220041 |
| 33 | 3257595 |