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 | 8857357509 |
| 2 | 10783550414 |
| 3 | 15197873690 |
| 4 | 23620285689 |
| 5 | 25537083494 |
| 6 | 34736070369 |
| 7 | 60326914934 |
| 8 | 64139567205 |
| 9 | 73969772954 |
| 10 | 75776483145 |
| 11 | 77509981185 |
| 12 | 83968675790 |
| 13 | 93092467754 |
| 14 | 100012014465 |
| 15 | 112236593469 |
| 16 | 113606741534 |
| 17 | 116519300534 |
| 18 | 118905484334 |
| 19 | 132584489114 |
| 20 | 134889106065 |