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 | 3 |
| 1 | 14 |
| 2 | 94 |
| 3 | 764 |
| 4 | 6658 |
| 5 | 59324 |
| 6 | 532234 |
| 7 | 4785284 |
| 8 | 43053538 |
| 9 | 387440684 |
| 10 | 3486844474 |
| 11 | 31381238804 |
| 12 | 282430072018 |
| 13 | 2541867430844 |
| 14 | 22876797254314 |
| 15 | 205891146476324 |
| 16 | 1853020231964098 |
| 17 | 16677181828937804 |
| 18 | 150094635684681754 |