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 | 1 |
| 2 | 35 |
| 3 | 798 |
| 4 | 15178 |
| 5 | 262739 |
| 6 | 4310073 |
| 7 | 68451856 |
| 8 | 1065454016 |
| 9 | 16372593237 |
| 10 | 249520885471 |
| 11 | 3782278181474 |
| 12 | 57129692163414 |
| 13 | 860905800344695 |
| 14 | 12953222527379429 |
| 15 | 194694881199600852 |
| 16 | 2924389779305546572 |
| 17 | 43905519073297744313 |
| 18 | 658979550560400579147 |
| 19 | 9888661146758667705190 |