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 | 4 |
| 2 | 92 |
| 3 | 5133 |
| 4 | 537813 |
| 5 | 91914202 |
| 6 | 23456071495 |
| 7 | 8411911367949 |
| 8 | 4055497274641836 |
| 9 | 2540939492105630071 |
| 10 | 2014322292658946180922 |
| 11 | 1977121111959534634757742 |
| 12 | 2360026677940190304494287625 |
| 13 | 3374607252811005168634470847052 |
| 14 | 5706308288951111509370981721908854 |