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 | 1 |
| 1 | 43 |
| 2 | 1806 |
| 3 | 75852 |
| 4 | 3184881 |
| 5 | 133727076 |
| 6 | 5614945203 |
| 7 | 235760834988 |
| 8 | 9899147615406 |
| 9 | 415646320207041 |
| 10 | 17452195907135052 |
| 11 | 732784406294332791 |
| 12 | 30768219023291805678 |
| 13 | 1291898809163525952060 |
| 14 | 54244365975641552431917 |