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 | 73 |
| 2 | 75 |
| 3 | 79 |
| 4 | 85 |
| 5 | 99 |
| 6 | 127 |
| 7 | 201 |
| 8 | 425 |
| 9 | 1253 |
| 10 | 5199 |
| 11 | 29945 |
| 12 | 229823 |
| 13 | 2275065 |
| 14 | 28132841 |
| 15 | 423135497 |
| 16 | 7573775211 |
| 17 | 158441583469 |
| 18 | 3816126076107 |
| 19 | 104494456797095 |