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 | 14 |
| 2 | 196 |
| 3 | 546 |
| 4 | 1521 |
| 5 | 10725 |
| 6 | 75625 |
| 7 | 292600 |
| 8 | 1132096 |
| 9 | 6404216 |
| 10 | 36228361 |
| 11 | 159389139 |
| 12 | 701243361 |
| 13 | 3636529806 |
| 14 | 18858430276 |
| 15 | 87651752650 |
| 16 | 407394975625 |
| 17 | 2035887257525 |
| 18 | 10174001088241 |
| 19 | 48443243140656 |
| 20 | 230661249751296 |
| 21 | 1134162648191664 |