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 | 2357 |
| 2 | 67717379 |
| 3 | 838997101 |
| 4 | 139149151157 |
| 5 | 149151157163 |
| 6 | 383389397401 |
| 7 | 503509521523 |
| 8 | 557563569571 |
| 9 | 577587593599 |
| 10 | 587593599601 |
| 11 | 601607613617 |
| 12 | 613617619631 |
| 13 | 727733739743 |
| 14 | 937941947953 |
| 15 | 1181118711931201 |