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) |
|---|---|
| 0 | 11 |
| 1 | 77 |
| 2 | 4949 |
| 3 | 343343 |
| 4 | 24012401 |
| 5 | 1680716807 |
| 6 | 117649117649 |
| 7 | 823543823543 |
| 8 | 57648015764801 |
| 9 | 4035360740353607 |
| 10 | 282475249282475249 |
| 11 | 19773267431977326743 |
| 12 | 1384128720113841287201 |
| 13 | 9688901040796889010407 |
| 14 | 678223072849678223072849 |