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 | 216 |
| 2 | 19188 |
| 3 | 1363572 |
| 4 | 87559668 |
| 5 | 5306911092 |
| 6 | 309846524148 |
| 7 | 17623065834612 |
| 8 | 983118947312628 |
| 9 | 54032675767734132 |
| 10 | 2934733632740325108 |
| 11 | 157871441490222209652 |
| 12 | 8425105813832255961588 |
| 13 | 446611038737537558861172 |