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 | 85864769 |
| 2 | 198479579 |
| 3 | 305192579 |
| 4 | 2400025739 |
| 5 | 7606886429 |
| 6 | 7755909149 |
| 7 | 10378311899 |
| 8 | 16744125509 |
| 9 | 17029114499 |
| 10 | 17117793089 |
| 11 | 17574340739 |
| 12 | 26089808579 |
| 13 | 28889527679 |
| 14 | 43390196519 |
| 15 | 45424068359 |
| 16 | 52179617159 |
| 17 | 54293956289 |
| 18 | 56838102179 |
| 19 | 65639153579 |
| 20 | 66655116659 |