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 | 13545 |
| 3 | 57645 |
| 4 | 116865 |
| 5 | 1440495 |
| 6 | 7029855 |
| 7 | 8596455 |
| 8 | 27361125 |
| 9 | 41100345 |
| 10 | 48289185 |
| 11 | 56122185 |
| 12 | 77560065 |
| 13 | 103225185 |
| 14 | 134813385 |
| 15 | 146591235 |
| 16 | 163817745 |
| 17 | 188358885 |
| 18 | 198748305 |
| 19 | 242668335 |
| 20 | 269436375 |
| 21 | 352094715 |
| 22 | 358841385 |
| 23 | 535135965 |
| 24 | 563911335 |
| 25 | 636719265 |
| 26 | 712457655 |
| 27 | 724692045 |