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 | 8 |
| 2 | 80 |
| 3 | 832 |
| 4 | 8704 |
| 5 | 91136 |
| 6 | 954368 |
| 7 | 9994240 |
| 8 | 104660992 |
| 9 | 1096024064 |
| 10 | 11477712896 |
| 11 | 120196169728 |
| 12 | 1258710630400 |
| 13 | 13181388849152 |
| 14 | 138037296103424 |
| 15 | 1445545331654656 |
| 16 | 15137947242201088 |
| 17 | 158526641599938560 |