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 | 1679609 |
| 2 | 5764793 |
| 3 | 99999989 |
| 4 | 4294967279 |
| 5 | 282429536453 |
| 6 | 377801998307 |
| 7 | 5352009260441 |
| 8 | 16815125390579 |
| 9 | 39062499999949 |
| 10 | 72301961339081 |
| 11 | 83733937890569 |
| 12 | 281474976710591 |
| 13 | 513798374428571 |
| 14 | 1113034787454899 |