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) |
|---|---|
| 0 | 9 |
| 1 | 82 |
| 2 | 1485 |
| 3 | 13447 |
| 4 | 243531 |
| 5 | 2205226 |
| 6 | 39937599 |
| 7 | 361643617 |
| 8 | 6549522705 |
| 9 | 59307347962 |
| 10 | 1074081786021 |
| 11 | 9726043422151 |
| 12 | 176142863384739 |
| 13 | 1595011813884802 |
| 14 | 28886355513311175 |
| 15 | 261572211433685377 |
| 16 | 4737186161319647961 |
| 17 | 42896247663310517026 |
| 18 | 776869644100908954429 |